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Group 1, 2, & 3 #5457829 06/19/20 03:56 PM
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AJB0009 Offline OP
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This was a recent post that I came across on the Exxon Mobil Industrial forum. Someone posted this question:

Why Engine Oil is made by group 1 base or group 2 oil. Why is not made by group 3 base oil.

This was the response from Korey Sargent, an engineer in training at Exxon Mobil:

To my knowledge, there are products on the market which utilize group 3 base stocks.

There is a common misconception that higher base stock group numbers automatically lead to higher quality engine oil - this is simply not true. While the base stock does have some bearing on the final product performance, it does not necessarily mean the product will be superior. There are many other factors in an oil formulation which contribute to a good overall product and a lot of this comes down to additive chemistry.

I suggest selecting products based on performance related attributes like OEM approvals, API specifications, proof of performance claims, warranties, customer reviews, etc. These factors are a better indicator of the final product performance.

~
Then, afterwards, some other random person posted this:

As we go higher in base oil groups, solubility of base oil drops and in engine oils, we have to add between 20-30% of additives. In this case additives will not dissolve properly. Many companies in north america are blending synthetic blends with group 1&2 with group 3 or PAO to make a fully formulated product. Another reason, is it does not remain cost effective as you are already making PAO based oils. There will be no big difference in cost so it will become tough selling option.


13 Toyota Corolla 1.8; Castrol GTX Ultraclean 5W30, OE filter
12 Ford Fusion 2.5; Castrol EDGE 5W30, CQ Blue
06 Toyota Tacoma 2.7; M1 HM 5W30, Wix XP
04 Ford Explorer 4.0; MC SB 5W30, MC FL820-S
Re: Group 1, 2, & 3 [Re: AJB0009] #5457943 06/19/20 06:07 PM
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sloinker Offline
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Research headed by accountants and delivered by chemical engineers drives the formulations of oil base stocks and add packs in any given quart by the big players The bottom line in a formulation dictates its contents. If XOM or Casstrol can save .000000002 cents a bottle and still meet their advertised specifications and approvals that is the recipe until they can do it cheaper.

Re: Group 1, 2, & 3 [Re: AJB0009] #5458007 06/19/20 07:35 PM
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buster Offline
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Most oil companies/blenders offer tiers - good, better, best. The top tiers have the higher base oil quality and additive chemistry, far exceeding most specifications.


2020 - Mazda CX-30 - Mobil 1 EP 0w20
2019 - Subaru Impreza - Dealer Oil
Re: Group 1, 2, & 3 [Re: buster] #5458581 06/20/20 03:21 PM
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Gene K Online Content
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Originally Posted by buster
Most oil companies/blenders offer tiers - good, better, best. The top tiers have the higher base oil quality and additive chemistry, far exceeding most specifications.


Now Buster surely your not suggesting that Mobil 1 Racing 4T might be better than O'Reilly 10W-40 Conventional in my 16,000 rpm 4-Stroke?

Last edited by Gene K; 06/20/20 03:22 PM.

Gene

2014 Mustang GT 5.0 SC - 675 bhp
ST Synthetic 10W30 / FL500S

2018 F150 4x4 3.5 EB
OEM Oil & Filter

2018 Lincoln MKX 3.7
OEM Oil & Filter
Re: Group 1, 2, & 3 [Re: AJB0009] #5458586 06/20/20 03:28 PM
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"So many shows out there dumb-down the country. It's so admirable to be part of a show that wants people to think." (David Krumholtz 'Charlie Epps' of NUMB3RS)
Re: Group 1, 2, & 3 [Re: sloinker] #5458592 06/20/20 03:33 PM
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kschachn Online Content
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Originally Posted by sloinker
Research headed by accountants and delivered by chemical engineers drives the formulations of oil base stocks and add packs in any given quart by the big players The bottom line in a formulation dictates its contents. If XOM or Casstrol can save .000000002 cents a bottle and still meet their advertised specifications and approvals that is the recipe until they can do it cheaper.

Hey you're back, still misspelling Castrol I see. Where have you been lately?


1994 BMW 530i, 253K
1996 Honda Accord, 289K
1999 Toyota Sienna, 437K
2000 Toyota ECHO, 290K
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