List of oils by base-oil-quality index: 0W-20 oils

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This is a follow-up on my previous thread that compared the 5W-xx oils:


Another one of the ultimate questions asked on BITOG is how the base-oil quality of 0W-20 oils compare to that of 5W-20 oils. Some people are afraid of 0W-20 oils because they think they are made of very thin base oils and will evaporate and leave deposits. However, you (and they) will find these results very interesting and contrary to these myths.

I define the base-oil-quality index (BOQI) as follows:

BOQI = (2,000,000)/(DV-30)/(NOACK) (useful for 5W-xx oils)

or

BOQI = (3,500,000)/(DV-35)/(NOACK) (useful for 0W-xx oils)

Here the unit for the DV-30 and DV-35 is cP and the NOACK volatility is expressed as a percentage. 2,000,000 in the original formula is a number I chose so that the highest base-oil-quality indexes (BOQIs) approach 100, while it's still possible to have numbers above 100.

In the formula for 0W-xx oils, I chose 3,500,000. This is because according to the https://compass.astm.org/EDIT/html_annot.cgi?D5293+15 ASTM D5293 - 15 paper, the value for DV-35 is typically 1.75 times the value for DV-30. This way we can at least roughly compare the 0W-xx oils to 5W-xx oils using the BOQI. However, this is not exact, and the 5W-xx BOQI numbers should only be compared to the 0W-xx BOQI numbers in the ballpark.

(Note: Some people also questioned the physical units of BOQI. It's inverse pressure if you realize that for physical NOACK is actually inverse time.)

The data was all taken from the independent PQIA except for the Amsoil Signature Series.

As always the base-oil quality alone doesn't dictate the overall oil quality. Detergents, additives, friction modifiers, and the viscosity-index improver are equally important.

With all this said, here are the main takeaways:

(1) Unlike 5W-20 oils, the base oils of 0W-20 oils are of consistently high quality.

(1) The base oils of 0W-20 oils are usually superior to the base oils of 5W-20 oils. Therefore, they should usually perform better in any engine than 5W-20 oils, including turbocharged engines, leaving to less deposits and resulting in the longest oil-change intervals. Less frequently 0W-20 and 5W-20 base-oil quality is comparable.

(2) 2014 Mobil 1 AFE 0W-20 is the now all-time BOQI champion, easily beating the old, discontinued Pennzoil Ultra. The current formulation is still excellent. However, the base-oil quality of M1 AFE 0W-20 seems to be going down every year, meaning they are putting less and less PAO in it every year.

(3) GTL (Pennzoil Platinum PurePlus) comes nowhere near PAO (Mobil 1 AFE) in base-oil quality. GTL quality is superior to that of plain Group III/III+ but it's nowhere near PAO. GTL-based formulations tended to have comparable base-oil quality for 5W-xx and 0W-20.

(4) Valvoline did well.

(5) The current champion is Amsoil Signature Series.

(6) 0W-20 myths have been debunked.

Here are the full results. The unit for DV-30 is cP and NOACK is a percentage (even though the physical quantity is percentage per hour). The base-oil-quality index (BOQI) is treated as a dimensionless quantity (physically it has the units of inverse pressure) and can in principle exceed 100. Note that the base oil may vary wildly with the manufacture date.

0W-20 oils:

Rank BOQI DV-35 NOACK Date Oil

1 84.3 4,110 10.10 2014 Mobil1 Synthetic API SN, ILSAC GF-5, SAE 0W-20 motor oil.
2 83.3 3,928 10.70 2015 Mobil 1 Full Synthetic SAE 0W-20 dexos1
3 81.6 4,290 10.00 2016 Amsoil Signature Series 0W-20 (Amsoil data)
4 78.2 4,182 10.70 2017 Mobil 1 Advanced Fuel Economy Full Synthetic SAE 0W-20 dexos1
5 57.8 5,884 10.30 2017 Pennzoil Platinum Full Synthetic with PurePlus™ Technology SAE 0W-20 dexos1
6 57.1 6,068 10.10 2015 Pennzoil Platinum Full Synthetic SAE 0W-20 dexos1 (PurePlus)
7 54.9 5,958 10.70 2014 Quaker State Synthetic API SN, ILSAC GF-5, SAE 0W-20 motor oil.
8 54.0 5,448 11.90 2015 Beck/Arnley Premium OE Fully Synthetic Motor Oil SAE 0W-20
9 53.2 5,721 11.50 2015 Valvoline Full Synthetic SYNPower SAE 0W-20
10 53.0 5,006 13.20 2015 SuperS SuperSyn Full Synthetic SAE 0W-20
11 51.9 5,819 11.60 2017 Valvoline Full Synthetic SYNPower SAE 0W-20 dexos1
12 49.8 5,537 12.70 2015 Castrol Edge Full Synthetic SAE 0W-20 dexos1 (black bottle)
13 48.6 5,451 13.20 2014 Castrol Edge Synthetic Motor Oil API SN, ILSAC GF-5, SAE 0W-20 motor oil. (Gold bottle)
14 47.6 5,658 13.00 2015 STARFIRE SAE 0W-20 Full Synthetic dexos1
15 47.2 5,657 13.10 2014 Pronto Supreme API SN, ILSAC GF-5, SAE 0W-20 motor oil. (Full synthetic)
16 47.2 4,981 14.90 2014 Starfire Motor Oil API SN, ILSAC GF-5, SAE 0W-20 motor oil. (Full synthetic)
17 46.2 5,786 13.10 2015 ProLine Full Synthetic SAE 0W-20 dexos1
18 45.6 5,113 15.00 2014 i-Sint XL 4AM Synthetic
19 43.5 6,138 13.10 2017 STP SYN Full Synthetic SAE 0W-20 dexos1
20 43.1 5,723 14.20 2016 AMSOIL Synthetic OE SAE 0W-20 Motor Oil
21 41.8 5,814 14.40 2014 MAG1 API SN, ILSAC GF-5, SAE 0W-20 motor oil. (Full synthetic)
22 39.7 6,163 14.30 2014 Federated Motor Oil API SN, ILSAC GF-5, SAE 0W-20 motor oil. (Full synthetic)


5W-xx oils:
Rank BOQI DV-30 NOACK Date Oil

1 79.2 3,827 6.60 2013 Pennzoil Ultra™ 5W-30 API SN ILSAC GF-5
2 70.1 4,389 6.50 2013 Pennzoil API SN, ILSAC GF-5, SAE 5W-20 motor oil. (Yellow Bottle)
3 63.8 4,017 7.80 2013 Quaker State API SN, ILSAC GF-5, SAE 5W-20 motor oil. (Advanced Durability)
4 57.5 3,996 8.70 2016 Quaker State Ultimate Durability Full Synthetic SAE 5W-30 dexos1
5 54.3 4,184 8.80 2013 Quaker State Ultimate Durability™ 5W-30 API SN ILSAC GF-5
6 53.9 4,080 9.10 2014 Pennzoil Platinum Full Synthetic Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil. (PurePlus)
7 51.8 4,884 7.90 2014 AC Delco API SN, ILSAC GF-5, SAE 5W-30 motor oil. (Synthetic Blend)
8 51.8 4,154 9.30 2013 Pennzoil Platinum® 5W-30 API SN ILSAC GF-5
9 51.6 3,998 9.70 2013 Formula Shell Synthetic 5W-30 API SN ILSAC GF-5
10 50.4 4,271 9.30 2016 O'Reilly Full Synthetic SAE 5W-20 dexos1
11 50.3 3,937 10.10 2013 Mobil 1 5W-30 API SN ILSAC GF-5
12 47.3 4,544 9.30 2017 MILESYN SXR SAE 5W-20 Full Synthetic Engine Oil
13 46.9 4,180 10.20 2016 Meijer Full Synthetic SAE 5W-20
14 44.9 3,352 13.30 2013 Havoline Synthetic, API SN, ILSAC GF-5, SAE 5W-20 motor oil.
15 43.4 4,431 10.40 2013 Auto Extra Full Synthetic 5W-30 API SN ILSAC GF-5
16 43.3 4,614 10.00 2015 LubriGold SAE 5W-30 Full Synthetic dexos1
17 42.5 4,358 10.80 2013 ENEOS Fully Synthetic 5W-30 API SN ILSAC GF-5
18 41.1 4,155 11.70 2016 Castrol Edge Full Synthetic SAE 5W-20 dexos1
19 41.0 5,744 8.50 2017 Navi Guard Ultra SAE 5W-20 Full Synthetic
20 40.9 4,941 9.90 2013 Schaeffer's Supreme 9000™ Full Synthetic Motor Oil 5W-30
21 39.8 4,329 11.60 2013 Valvoline SYNPOWER™ 5W-30 API SN ILSAC GF-5
22 39.6 3,881 13.00 2013 Havoline Synthetic 5W-30 API SN ILSAC GF-5
23 39.4 4,924 10.30 2015 STARFIRE SAE 5W-20 Full Synthetic dexos1
24 39.2 4,512 11.30 2013 LUKOIL Full Synthetic Motor Oil 5W-30 API SN ILSAC GF-5
25 38.7 4,576 11.30 2013 Super Tech Full Synthetic 5W-30 API SN ILSAC GF-5
26 38.7 3,860 13.40 2017 Chevron Havoline Pro DS SAE 5W-20 Full Synthetic Motor Oil
27 38.6 4,179 12.40 2013 FRAM Full Synthetic 5W-30 API SN ILSAC GF-5
28 38.6 4,892 10.60 2016 AutoQuest Full Synthetic SAE 5W-30 dexos1
29 38.3 5,019 10.40 2016 Royal Purple Synthetic Oil SAE 5W-20 High Performance Motor Oil
30 38.2 5,453 9.60 2013 LubriGold® Synthetic 5W-30 API SN, ILSAC GF-5, Dexos™
31 37.7 5,590 9.50 2017 Royal Purple Synthetic Oil SAE 5W-20 High Performance Motor Oil
32 37.2 5,599 9.60 2016 Race Pro Platinum Full Synthetic "SAE 5W20"
33 37.1 4,945 10.90 2013 Amsoil OE 5W-30 API SN ILSAC GF-5
34 36.7 5,090 10.70 2013 Kendall GT-1 Full Synthetic with Liquid Titanium 5W-30 API SN ILSAC GF-5
35 36.1 5,479 10.10 2014 Mobil 1 High Mileage Motor Oil SAE 5W-30, API SL
36 35.9 4,604 12.10 2013 Traveller Full Synthetic 5W-30 API SN ILSAC GF-5
37 35.8 5,126 10.90 2014 Valvoline MAX Life High Mileage, API SN, ILSAC GF-5, SAE 5W-30 motor oil.
38 35.0 4,612 12.40 2016 Preferred Choice Synthetic Blend SAE 5W-30 High Performance Motor Oil
39 34.7 4,611 12.50 2016 AutoZone Full Synthetic SAE 5W-20 dexos1
40 34.3 5,069 11.50 2016 AutoPride SAE 5W-30 All Season Motor Oil
41 33.3 5,411 11.10 2013 NAPA Synthetic Maximun Engine Protection 5W-30 API SN ILSAC GF-5
42 33.2 4,152 14.50 2014 National Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
43 33.0 5,562 10.90 2013 Royal Purple® Synthetic Oil 5W-30 API SN ILSAC GF-5
44 32.7 4,781 12.80 2017 Sheetz Premium Motor Oil SAE 5W-20
45 32.5 5,544 11.10 2013 Castrol Edge® 5W-30 API SN ILSAC GF-5
46 32.3 5,031 12.30 2016 Quantum X-5 Max-Blend Semi-Synthetic Motor Oil
47 32.1 4,156 15.00 2014 Marathon Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
48 32.1 5,832 10.70 2014 Valvoline NextGen API SN, ILSAC GF-5, SAE 5W-20 motor oil.
49 32.0 5,487 11.40 2015 Quaker State SAE 5W-30 Advanced Durability
50 31.9 5,177 12.10 2015 7-Eleven Motor Oil SAE 5W-30
51 31.7 5,436 11.60 2013 Mobil Super™ Synthetic 5W-30 API SN ILSAC GF-5
52 31.4 4,856 13.10 2017 Marathon SAE 5W-20 Performance Series Motor Oil
53 31.4 5,053 12.60 2017 StarFire SAE 5W-20
54 31.3 4,293 14.90 2013 Lucas® Synthetic 5W-30 API SN ILSAC GF-5
55 31.1 5,544 11.60 2017 O'Reilly SAE 5W-20
56 31.0 5,038 12.80 2017 CarQuest SAE 5W-20 Full Synthetic
57 30.9 5,782 11.20 2015 American XT Premium SAE 5W-30 High Mileage Motor Oil
58 30.8 5,553 11.70 2013 Proline® Full Synthetic Motor Oil 5W-30 API SN ILSAC GF-5
59 30.6 5,230 12.50 2017 Chevron Havoline SAE 5W-20 Motor Oil
60 30.6 5,595 11.70 2017 Kum & Go SAE 5W-30 Full Synthetic dexos1 Motor Oil
61 30.2 5,480 12.10 2016 Mobil Super Premium Motor Oil SAE 5W-20
62 30.1 5,828 11.40 2017 Zecol-Max Synthetic, Semi-Synthetic SAE 5W-20 Motor Oil
63 30.1 5,323 12.50 2017 AutoQuest by meijer SAE 5W-20 Conventional Motor Oil
64 30.0 5,643 11.80 2015 Zecol-Max Semi-Synthetic SAE 5W-30
65 29.7 5,426 12.40 2015 MAG 1 Motor Oil SAE 5W-20
66 29.6 5,815 11.60 2017 Castrol GTX SAE 5W-20 Motor Oil
67 29.5 5,432 12.50 2017 Preferred Choice Synthetic Blend SAE 5W-20 High Performance Motor Oil
68 29.5 5,264 12.90 2013 SuperS Multi Flo Synthetic Blend API SN, ILSAC GF-5, SAE 5W-20 motor oil.
69 29.1 5,324 12.90 2016 Smart Living SAE 5W-30 Premium Motor Oil
70 29.0 5,229 13.20 2016 Certified Performance Engineered SAE 5W-30 Motor Oil
71 29.0 5,396 12.80 2016 Speedway SAE 5W-20 Motor Oil
72 28.9 5,400 12.80 2014 Warren Motor Oil API SN, ILSAC GF-5, SAE 5W-20 motor oil.
73 28.8 5,463 12.70 2016 Kum & Go Synthetic Blend SAE 5W-20 Motor Oil
74 28.7 5,523 12.60 2015 PROLINE SAE 5W-20 All Season Motor Oil
75 28.7 5,407 12.90 2014 Kangaroo Express Motor Oil SAE 5W-30, API SN, ILSAC GF-5
76 28.6 5,339 13.10 2016 Pennzoil Motor Oil SAE 5W-20
77 28.5 5,534 12.70 2016 Valvoline Max Life High Mileage Synthetic Blend SAE 5W-20, dexos1TM
78 28.1 5,237 13.60 2014 HESS Motor Oil SAE 5W-30, API SN, ILSAC GF-5
79 28.0 6,010 11.90 2016 RaceTrac RPMaximum SAE 5W-30 Performance Rated Motor Oil
80 27.9 4,777 15.00 2014 CAM2 SuperPRO Max Motor Oil SAE 5W-30, API SN, ILSAC GF-5
81 27.9 5,687 12.60 2014 Quaker State DEFY API SL SAE 5W-30 motor oil.
82 27.8 5,136 14.00 2013 Castrol GTX API SN, ILSAC GF-5, SAE 5W-20 motor oil.
83 27.7 6,214 11.60 2015 PENTO SUPER PERFORMANCE III SAE 5W-30 Motor Oil
84 27.7 5,973 12.10 2016 PETROMERICA SAE 5W-30 Synthetic Blend Motor Oil
85 27.6 5,700 12.70 2016 Sinclair Supreme SAE 5W-30 Motor Oil
86 27.4 5,539 13.20 2014 Speedway API SN, ILSAC GF-5, SAE 5W-20 motor oil.
87 27.3 6,048 12.10 2016 Castrol GTX Motor Oil SAE 5W-20
88 27.1 5,761 12.80 2017 MidWest Guard SAE 5W-30 Synthetic Blend Motor Oil
89 27.0 5,562 13.30 2017 CITGO SUPERGARD SAE 5W-30 Synthetic Blend
90 27.0 5,615 13.20 2015 Chevron Havoline SAE 5W-20 Motor Oil
91 26.9 5,304 14.00 2016 LUKOIL SAE 5W-20 Synthetic Blend Motor Oil
92 26.7 5,582 13.40 2017 Signature Home SAE 5W-30 Premium Motor Oil
93 26.7 5,586 13.40 2017 Prime Guard SAE 5W-20 Synthetic Blend Motor Oil
94 26.7 5,950 12.60 2017 Chevron Supreme SAE 5W-20 Motor Oil
95 26.5 5,664 13.30 2013 Auto Exra API SN, ILSAC GF-5, SAE 5W-20 motor oil.
96 26.5 5,316 14.20 2013 CAM2 Super Pro MAX API SN, ILSAC GF-5, SAE 5W-20 motor oil.
97 26.4 5,482 13.80 2015 Wolf's Head SAE 5W-30 Motor Oil Super-Duty Semi-Synthetic
98 26.4 5,650 13.40 2016 CITGO SUPERGARD SAE 5W-20 Synthetic Blend
99 26.4 5,737 13.20 2015 DuraMAX Liquid Armor SAE 5W-30 Synthetic Blend
100 26.4 5,662 13.40 2013 Traveller Premium API SN, ILSAC GF-5, SAE 5W-20 motor oil.
101 26.3 5,471 13.90 2014 Super S Multi Flo High Mileage Motor Oil API SN, ILSAC GF-5, SAE 5W-30
102 26.3 5,471 13.90 2014 Super S Multi Flo High Mileage Motor Oil API SN, ILSAC GF-5, SAE 5W-30
103 26.2 5,332 14.30 2016 PROLINE SAE 5W-20 All Season Motor Oil
104 26.0 6,008 12.80 2015 Shell Rotella T6 Synthetic SAE 5W-40, API CJ-4, CI-4, CI-4 Plus, CI-4, CH-4, CG-4/SM
105 26.0 5,538 13.90 2013 Mobil 5000 API SN, ILSAC GF-5, SAE 5W-20 motor oil.
106 25.9 5,281 14.60 2013 Atlas Team Clear Blend API SN, ILSAC GF-5, SAE 5W-20 motor oil.
107 25.9 5,772 13.40 2014 NAPA High Mileage, API SN, ILSAC GF-5, SAE 10W-30 motor oil.
108 25.8 5,283 14.70 2013 Proline API SN, ILSAC GF-5, SAE 5W-20 motor oil.
109 25.7 5,284 14.70 2015 Quaker State Advanced Durability SAE 5W-30
110 25.7 5,646 13.80 2013 Sheetz Premium API SN, ILSAC GF-5, SAE 5W-20 motor oil.
111 25.7 5,860 13.30 2014 Service Pro API SN, ILSAC GF-5, SAE 5W-20 motor oil.
112 25.6 6,154 12.70 2015 Safeway SAE 5W-30 Premium Motor Oil
113 25.6 5,790 13.50 2014 Ace Motor Oil, API SN, ILSAC GF-5, SAE 5W20 motor oil.
114 25.6 5,790 13.50 2014 Ace Motor Oil, API SN, ILSAC GF-5, SAE 5W20 motor oil.
115 25.4 5,668 13.90 2016 LMX SAE 5W-20 Premium Motor Oil
116 25.4 5,472 14.40 2015 Peak SAE 5W-30 Conventional Motor Oil
117 25.4 5,594 14.10 2014 Mobil Super High Mileage Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
118 25.2 6,049 13.10 2015 Star Fire SAE 5W-20 Synthetic Blend Motor Oil
119 25.0 5,875 13.60 2014 Pennzoil High Higher Mileage, API SN, SAE 5W-30 motor oil.
120 25.0 5,566 14.40 2017 Sunoco Ultra SAE 5W-20 Premium Motor Oil
121 24.9 6,028 13.30 2015 RK SAE 5W-30
122 24.9 5,624 14.30 2013 CAM2® SYNAVEX™ 5W-30 API SN, ILSAC GF-5 (Full Synthetic)
123 24.7 5,360 15.10 2013 Formula Shell API SN, ILSAC GF-5, SAE 5W-20 motor oil.
124 24.6 6,266 13.00 2015 Casey's General Store SAE 5W-30
125 24.5 5,590 14.60 2015 Essential Everyday SAE 5W-30
126 24.5 5,555 14.70 2013 Autozone API SN, ILSAC GF-5, SAE 5W-20 motor oil.
127 24.5 6,141 13.30 2014 Castrol GTX High Mileage Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
128 24.4 5,975 13.70 2014 RacePro Motor Oil API SN, ILSAC GF-5, SAE 5W-20 motor oil.
129 24.1 5,489 15.10 2014 O'Reilly High Mileage Motor Oil SAE 5W-30, API SN, ILSAC GF-5
130 24.0 6,208 13.40 2014 Duplex Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
131 24.0 5,595 14.90 2013 Advance Auto Parts API SN, ILSAC GF-5, SAE 5W-20 motor oil.
132 24.0 6,225 13.40 2017 Premier SAE 5W-30 Motor Oil
133 23.9 6,528 12.80 2017 Vantage 5W-30 SAE Synthetic Blend Oil
134 23.9 5,617 14.90 2013 O'Reilly API SN, ILSAC GF-5, SAE 5W-20 motor oil.
135 23.9 5,936 14.10 2014 Murphy USA Premium Motor Oil SAE 5W-30, API SN, ILSAC GF-5
136 23.8 5,641 14.90 2015 ACCEL Motor Oil SAE 5W-30
137 23.8 5,764 14.60 2017 Ford Motorcraft SAE 5W-20 Synthetic Blend Motor Oil
138 23.8 5,766 14.60 2017 Phillips 66 Shield Choice SAE 5W-30 Synthetic Blend Motor Oil
139 23.7 5,746 14.70 2016 Valvoline Premium Conventional SAE 5W-20 Motor Oil
140 23.4 6,021 14.20 2013 Pronto Supreme API SN, ILSAC GF-5, SAE 5W-20 motor oil.
141 23.3 6,164 13.90 2017 Navi Guard Elite SAE 5W-30 Synthetic Blend
142 23.3 6,082 14.10 2015 SuperTech Conventional SAE 5W-30
143 23.3 5,618 15.30 2013 Peak API SN, ILSAC GF-5, SAE 5W-20
144 23.2 5,790 14.90 2014 Advance Auto Parts API SN, ILSAC GF-5, SAE 5W-20 motor oil.
145 23.2 5,911 14.60 2014 Advance Auto Parts High Mileage, API SN, ILSAC GF-5, SAE 10W-30 motor oil.
146 23.1 6,356 13.60 2016 Circle K SAE 5W-30 Premium Motor Oil
147 23.1 5,692 15.20 2014 Valvoline API SN, ILSAC GF-5, SAE 5W-20 motor oil. (White Bottle)
148 23.0 5,828 14.90 2017 Phillips 66 Trop Artic SAE 5W-20 Synthetic Blend Motor Oil
149 23.0 5,720 15.20 2013 Federated Auto Parts API SN, ILSAC GF-5, SAE 5W-20 motor oil.
150 22.9 6,055 14.40 2015 Valvoline SAE 5W-20 Premium Conventional Motor Oil
151 22.9 5,745 15.20 2013 Motorcraft API SN, ILSAC GF-5, SAE 5W-20 motor oil. (Synthetic Blend)
152 22.9 5,984 14.60 2014 Chevron Supreme API SN, ILSAC GF-5, SAE 5W-20 motor oil.
153 22.9 5,825 15.00 2014 SurgeGuardAPI SM, ILSAC GF-4, SAE 5W-20 motor oil.
154 22.8 5,955 14.70 2015 SynGard Synthetic Blend SAE 5W-30
155 22.7 6,034 14.60 2013 Wolf's Head API SN, ILSAC GF-5, SAE 5W-20 motor oil.
156 22.7 5,877 15.00 2015 STP Pro Formula 5W-30
157 22.7 6,174 14.30 2014 MAG1 Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
158 22.5 5,846 15.20 2013 CERTIFIED Performance Engineered, API SN, ILSAC GF-5, SAE 5W-20 motor oil.
159 22.3 6,008 14.90 2015 Phillips 66 Trop Artic SAE 5W-30 Synthetic Blend Motor Oil
160 22.3 6,220 14.40 2013 RacePRO Semi Synthetic, API SN, ILSAC GF-5, SAE 5W-20 motor oil.
161 22.3 5,987 15.00 2013 Parts Master API SN, ILSAC GF-5, SAE 5W-20 motor oil.
162 22.2 5,854 15.40 2014 Delfin Ultimate API SM, ILSAC GF-4, SAE 5W-20 motor oil.
163 22.2 5,858 15.40 2014 Havoline Motor Oil with Deposit Shield SAE 5W-30, API SN, ILSAC GF-5
164 22.1 5,739 15.75 2013 76 Super Synthetic Blend, API SN, ILSAC GF-5, SAE 5W-20 motor oil.
165 22.1 5,960 15.20 2014 Brad Penn Synthetic Blend API SN, ILSAC GF-5, SAE 5W-20 motor oil.
166 22.1 6,292 14.40 2015 Mobil Special SAE 5W-30 Quality Motor Oil
167 21.9 6,373 14.30 2014 Mototech Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
168 21.9 6,004 15.20 2015 Ford Motorcraft SAE 5W-30 Synthetic Blend
169 21.6 6,165 15.00 2016 Phillips 66 Trop Artic SAE 5W-30 Synthetic Blend Motor Oil
170 21.5 6,124 15.20 2014 SuperTECH High Mileage, API SN, ILSAC GF-5, SAE 5W-30 motor oil.
171 21.4 6,199 15.10 2014 Kendall with Liquid Titanium API SN, ILSAC GF-5, SAE 5W-20 motor oil.
172 21.3 6,144 15.30 2015 Agip SUPER XL SAE 5W-30, API SN, ILSAC GF-5
173 21.2 6,334 14.90 2014 7-Eleven Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil
174 20.8 5,988 16.05 2014 PEAK High Mileage Motor Oil API SN, ILSAC GF-5, SAE 5W-30 motor oil.
175 20.7 6,262 15.40 2014 O'Reilly High Mileage API SN, ILSAC GF-5, SAE 5W-30 motor oil.
176 20.6 2,474 39.20 2017 MORGAS SAE 5W-20 Synthetic Blend (failed tests)
177 20.6 5,288 18.35 2013 Valvoline NextGen API SN, ILSAC GF-5, SAE 5W-20 motor oil.
178 20.4 6,326 15.50 2014 MileMaster API SN, ILSAC GF-5, SAE 5W-20 motor oil.
179 20.3 6,227 15.80 2016 Service Pro Premium Lubricants SAE 5W-20 Synthetic Blend Motor Oil
180 20.2 6,335 15.65 2014 Evolve API SN/ILSAC GF-5, SAE 5W-30 motor oil.
181 19.9 6,355 15.80 2013 CITGO SUPERGARD Synthetic Blend, API SN, ILSAC GF-5, SAE 5W-20 motor oil.
182 19.1 6,833 15.30 2017 SuperS Custom Plus SAE 5W-20 Synthetic Blend (failed tests)
183 11.7 3,197 53.40 2016 Super XXX Platinum 5W30 Premium Motor Oil (failed tests)
 
Last edited by a moderator:
Thanks for the post.
Maybe you can do one for 10w
smile.gif
 
Originally Posted By: Gokhan
The base oils of 0W-20 oils are usually superior


I've read this here and alot of other places,that 0W20 has the best base oil of all the viscosities.
 
Originally Posted By: merconvvv
Thanks for the post.
Maybe you can do one for 10w
smile.gif


Good question!

If you notice the trend, the base-oil quality (BOQI) decreases dramatically as x in xW-y increases. I would expect poor base-oil quality for most 10W-30 oils. The reason for that is that as x increases, oils can be easily formulated with lower API groups. Group I and Group II are sufficient for 10W-30. No Group II+, which is used in conventional 5W-30, is needed.

I estimated the scaling factor for DV-25 for calculating the BOQI for 10W-xx as 1,160,000. If you plug this in, you get:

BOQI = (1,160,000)/(DV-25)/(NOACK) (useful for 10W-xx oils)

2011 Chevron Supreme 10W-30 BOQI = 14.8 (very low)
2010 7-Eleven 10W-30 BOQI = 16.0 (very low)

However, you also get:

2015 Pennzoil (yellow bottle) 10W-30 BOQI = 65.0 (GTL-based)

The reason for this anomaly is that circa 2013 - 2015, they actually used GTL in Pennzoil Yellow Bottle. BOQI around 15 seems to be typical for conventional 10W-30, which seems to be made of Group I or low-quality Group II.

Stay away from 10W-30. It's a thing of the past. You might be able to run into a quality 10W-30 formulation, especially with a brand-name full synthetic, but you will most likely end up with an inferior Group I/II oil.
 
Last edited by a moderator:
Originally Posted By: TheKracken
Do 5w20's have great base oils as well? I will be running PUP 5w20 in everything here soon.

5W-20s are listed in the second table in the original post. M1 AFE 0W-20 has the best base oil among tested xW-20 oils. It's similar to Amsoil Signature Series 0W-20 in base-oil quality. So, if you want to go with the best base-oil quality, you should go with M1 AFE 0W-20 or perhaps M1 EP 0W-20, not the PP/PUP and not a 5W-20.

This said, I use TGMO 0W-20 SN. However, there is no test data on it.
 
Originally Posted By: Gokhan
Originally Posted By: TheKracken
Do 5w20's have great base oils as well? I will be running PUP 5w20 in everything here soon.

5W-20s are listed in the second table in the original post. M1 AFE 0W-20 has the best base oil among tested xW-20 oils. It's similar to Amsoil Signature Series 0W-20 in base-oil quality. So, if you want to go with the best base-oil quality, you should go with M1 AFE 0W-20 or perhaps M1 EP 0W-20, not the PP/PUP and not a 5W-20.

This said, I use TGMO 0W-20 SN. However, there is no test data on it.


I have 12 jugs of the 5w20 PUP, I might have to consider sending them back....though base oil isnt everything, it is additives as well. Like you, I am a thin oil guy.
 
Originally Posted By: Gokhan

Stay away from 10W-30. It's a thing of the past. You might be able to run into a quality 10W-30 formulation, especially with a brand-name full synthetic, but you will most likely end up with an inferior Group I/II oil.


This is Hearsay.
 
Originally Posted By: TheKracken

I have 12 jugs of the 5w20 PUP, I might have to consider sending them back....



Pffffft. Pay no attention to that man behind the curtain.
 
You said " (2) 2014 Mobil 1 AFE 0W-20 is the now all-time BOQI champion, easily beating the old, discontinued Pennzoil Ultra. The current formulation is still excellent. However, the base-oil quality of M1 AFE 0W-20 seems to be going down every year, meaning they are putting less and less PAO in it every year.".

I just bought a batch of PUP 0w-20 from Amazon, although yet to be delivered. On the Pennz website it is still listed as an active product. What product was discontinued ?
 
As if the original concept wasn't baseless enough, but WOW, to extend it's "findings" to 0W and 10W, therefore "verifying" that 0W20s use better basestocks...priceless.

I still haven't seen you divide by colour, as clearly the purity of basestocks has a colour element to it as well.
 
Originally Posted By: rubberchicken
You said " (2) 2014 Mobil 1 AFE 0W-20 is the now all-time BOQI champion, easily beating the old, discontinued Pennzoil Ultra. The current formulation is still excellent. However, the base-oil quality of M1 AFE 0W-20 seems to be going down every year, meaning they are putting less and less PAO in it every year.".

I just bought a batch of PUP 0w-20 from Amazon, although yet to be delivered. On the Pennz website it is still listed as an active product. What product was discontinued ?

LOL! Don't cancel your order! The discontinued one is "Pennzoil Ultra", it's not what you're referring to which is "Pennzoil Ultra Platinum". Pennzoil Ultra is like the ultra variant of standard Pennzoil and Pennzoil Ultra Platinum is like the ultra variant of Pennzoil Platinum. PuP is still in production.

I believe the discontinued Pennzoil Ultra differed from PuP at least in that it wasn't Pureplus Technology like PuP is.
pzultra.gif
 
Originally Posted By: Linctex
Originally Posted By: Gokhan

Stay away from 10W-30. It's a thing of the past. You might be able to run into a quality 10W-30 formulation, especially with a brand-name full synthetic, but you will most likely end up with an inferior Group I/II oil.


This is Hearsay.

Yeah that seems like an unreasonable allegation. Especially considering his sample size of 3, two of which were conventional oils that were likely API SM.

"Thing of the past." Pure hyperbole.

Originally Posted By: NoNameJoe
I believe the discontinued Pennzoil Ultra differed from PuP at least in that it wasn't Pureplus Technology like PuP is.

True, though keep in mind according to Shell, they rolled out the GTL formulations during 2013 before the label change in 2014.
 
Yep. My son's 2007 Chrysler calls for 10w30 - it is running like new at 160k - only variable is now on M1 HM 10w30 ...
I don't see any reason to change it to 0w20 for a ratio of this, that, the other ...
 
I'm running M1 HM 10w30 in my fusion and it runs great. 10w30 has gotten better alongside every other oil viscosity. I question the validity of the OP data and I also question every post he makes...
 
Originally Posted By: Shannow
I still haven't seen you divide by colour, as clearly the purity of basestocks has a colour element to it as well.

Not to mention an error analysis, with the notoriously poor reproducibility of Noack....
 
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