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New car....conventional oil? #5414756 04/27/20 03:07 PM
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gman2304 Offline OP
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Have you used conventional oil exclusively in your new car or truck beginning with the first oil change, in the last 5 years?

Re: New car....conventional oil? [Re: gman2304] #5414764 04/27/20 03:19 PM
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ka9mnx Offline
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I haven't used conventional oil since 1975!


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: New car....conventional oil? [Re: gman2304] #5414769 04/27/20 03:24 PM
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Lolvoguy Online Shocked
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Depends on the engine design.
If I had a new NA, port injected vehicle, sure, I wouldn't think twice about it.

But the reality is I don't. Neither do the majority of folks on the road these days.


06 Lexus IS350- Wife
88 BMW 325is- Mistress
Say "no" to Turbo!
Re: New car....conventional oil? [Re: gman2304] #5414775 04/27/20 03:40 PM
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Tdbo Online Content
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Most of the "Conventional" oil that I run across is a syn blend.
I doubt there is much of any conventional blend left, unless it is for a specific application, such as air compressors, for instance.


2012 Honda Accord LX-P 103K
2008 Ford Mustang Pony Package Convertible 18K
2006 Honda Odyssey EX-L 77K
2003 Ford Ranger 3.0 Supercab 127K
Re: New car....conventional oil? [Re: gman2304] #5414776 04/27/20 03:42 PM
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Gokhan Offline
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Considering that conventional 5W-20 and 5W-30 PCMO is Group II+ and fewer and fewer OEMs are recommending conventional oil, they will disappear soon and only Group III and higher oils will remain. Any facility that makes Group II+ base stocks can easily convert the process into making Group III base stocks by running their process more severely, as the process for making Group III base stocks is identical to the process for making Group II base stocks, the only difference being the severity.

However, conventional Group II 15W-40 HDEO will remain there for a long time.


2020 Toyota Prius Prime XLE plug-in hybrid, 2ZR-FXE engine, ~ 65 mpg on regular gasoline, ~ 5,000 mi
TGMO 0W-16 SN/RC Japan
OEM spin-on oil filter Japan
Re: New car....conventional oil? [Re: gman2304] #5414799 04/27/20 04:05 PM
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Quattro Pete Offline
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Originally Posted by gman2304
Have you used conventional oil exclusively in your new car or truck beginning with the first oil change, in the last 5 years?

How many true conventional oils still exist that meet the engine mfg requirements noted in owner manuals of most new cars and trucks?


2002 530i   2015 Q5 3.0T   2018 Charger SRT
Re: New car....conventional oil? [Re: gman2304] #5414811 04/27/20 04:21 PM
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Cellist Offline
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I just put 4.5 quarts of Quaker state 5w-20 conventional last week in my new 2020 corolla 2.0 SE. Factory fill 0w-16 after 4000 miles of highway driving still looks nice and clear. I feel no change in acceleration and fuel economy switching to 5w20 from 0w16. I use the oil simply because it's the cheapest oil in my hand and I will have it changed at dealer for free at 10K miles.

Re: New car....conventional oil? [Re: gman2304] #5414820 04/27/20 04:31 PM
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Bud Offline
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No


2016 Honda Pilot EX-L with NAVI.....Mobil 1 0w20 AFE and Honda OEM Filter
Re: New car....conventional oil? [Re: gman2304] #5414828 04/27/20 04:40 PM
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walterjay Online Content
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No

Re: New car....conventional oil? [Re: gman2304] #5414829 04/27/20 04:43 PM
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No


2018 Ram 1500 - VME 5W-20
Re: New car....conventional oil? [Re: gman2304] #5414836 04/27/20 04:57 PM
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csandste Offline
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5w20 and 5w30 conventional is semi-syn. It's not really much cheaper unless it's at an oil change place. There it's WAAAY cheaper.


2017 Kia Soul+ Valvoline Daily Protection 5w30+ a bit of Harvest King syn 5w30-- 75,000 miles
Re: New car....conventional oil? [Re: Cellist] #5414844 04/27/20 05:18 PM
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Gokhan Offline
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Originally Posted by Cellist
I just put 4.5 quarts of Quaker state 5w-20 conventional last week in my new 2020 corolla 2.0 SE. Factory fill 0w-16 after 4000 miles of highway driving still looks nice and clear. I feel no change in acceleration and fuel economy switching to 5w20 from 0w16. I use the oil simply because it's the cheapest oil in my hand and I will have it changed at dealer for free at 10K miles.

No, you need to drain it at 5,000 miles. The TGMO 0W-16 (ExxonMobil version) is GTL, and the M1 AFE 0W-16 is PAO. You can't do a 10,000-mile OCI on a Group II oil.


2020 Toyota Prius Prime XLE plug-in hybrid, 2ZR-FXE engine, ~ 65 mpg on regular gasoline, ~ 5,000 mi
TGMO 0W-16 SN/RC Japan
OEM spin-on oil filter Japan
Re: New car....conventional oil? [Re: gman2304] #5414846 04/27/20 05:21 PM
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supton Offline
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No, although my new-to-me beater has been getting conventional, so, not sure if that is in the spirit of this thread.


2011 Toyota Camry, base, 2.5L/6MT, 205k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 159k, ours
1999 Toyota Camry LE, 2.2L/4AT, 225k, his
Re: New car....conventional oil? [Re: Gokhan] #5414850 04/27/20 05:29 PM
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Originally Posted by Gokhan
Originally Posted by Cellist
I just put 4.5 quarts of Quaker state 5w-20 conventional last week in my new 2020 corolla 2.0 SE. Factory fill 0w-16 after 4000 miles of highway driving still looks nice and clear. I feel no change in acceleration and fuel economy switching to 5w20 from 0w16. I use the oil simply because it's the cheapest oil in my hand and I will have it changed at dealer for free at 10K miles.

No, you need to drain it at 5,000 miles. The TGMO 0W-16 (ExxonMobil version) is GTL, and the M1 0W-16 is PAO. You can't do a 10,000-mile OCI on a Group II oil.

I believe the OP said he used QSAD for his own oil change at 4K miles, and the dealer would give him a freebie at 10K miles.


Porgy Tirebiter: "Heavy on the 30 weight, Mom."
2017 Toyota Camry XLE, 12K, 2nd owner
2007 Honda Ridgeline RTS, 97K, original owner
2007 Infiniti M35, 115K, original owner
Re: New car....conventional oil? [Re: gman2304] #5414852 04/27/20 05:30 PM
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OilUzer Offline
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Our 2014 was purchased new
OM spec : 5W20, 5W30, 10W30 and No mention of using synthetic engine oil anywhere.

I used Chevron Supreme 5W30 and 10W30 dino for the first 3+ years.
5W30 is a blend but I didn't know. The bottle doesn't say blend but chevron website says blend. I learned that here.

I even asked a question here that why doesn't owners manual specify longer oci with syn and shorter with dino? Consensus were that it doesn't matter and it will do fine with either ...

I still use dino if I have left-overs and/or want to reduce my stash but change the oil sooner and basically ignore the recommended oci. If I use syn, then I go up to recommended oci +/-

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