Have You Used One Oil for the Life of a Vehicle?

BlueOvalFitter

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Cajun Country, La.
I hate that, when a reply is made and it stretches the screen so wide that my laptop can't cover it. I have a cousin that has used ONLY Pennzoil in his vehicles. He believes if he uses ANY other name brand oil that his engines will blow up, freeze, of fall out of the vehicle. He thinks that the internal parts get "USED TO" an oil and won't work well with another brand. laugh grin
 
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North Carolina
I have only had pennzoil in the hyundai, it has about 68k on it. But this go round it is getting valvoline synpower, as i still have a bit left from the walmart special days.
 
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Crawfordville FL
Originally Posted By: BlueOvalFitter
I hate that, when a reply is made and it stretches the screen so wide that my laptop can't cover it. I have a cousin that has used ONLY Pennzoil in his vehicles. He believes if he uses ANY other name brand oil that his engines will blow up, freeze, of fall out of the vehicle. He thinks that the internal parts get "USED TO" an oil and won't work well with another brand. laugh grin
Oils are reformulated constantly and there is batch to batch variation. I guess he didn’t get the memo
 

Patman

Staff member
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Location
Guelph, Ontario
Originally Posted By: 4WD
Before the drag runs?
I probably won't make it out to the dragstrip until after I've switched it over to ESP.
 
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Wet side WA
Our family had a 1962 Volvo PV544 ran on S.A.E. 30 Valvoline all the time we had it. In 1985 it passed out of the family with 330K miles on it. Brakes, Batteries, Tires and one water pump were the total of work on the car other than tune ups and oil changes. So I'm going to say sticking with that cheap conventional same brand oil just doesn't work. I think when I was young and changing the oil in it Valvoline was about .59 a quart.
 
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I believe there is some benefit of running the same oil. In my first two vehicles I ran Havoline. After those cars, Havoline became scarce so I used Castrol GTX on our first Mitsubishi and M1 on the second. Now it’s Valvoline. A convoluted answer but for the most part each vehicle ran the same oil during its lifetime.
 
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13
Location
ohio
Originally Posted By: SilverFusion2010
You can stick with one brand but it’s not the same oil over time. Oils are reformulated as needed to meet specs and cost and/or to take advantage of new technologies.
easy solution then, buy lifetime supply upon vehicle purchase and stock up.
 

john_pifer

Thread starter
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3,842
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Nashville, TN via Memphis
Originally Posted By: Propflux01
Since the truck uses no oil, I see no reason to use a thicker viscosity oil. There is no reason to. Stick with the 5w-30 and keep doing what your doing. You have found your sweet spot on oils.
That's sort of the logic I've been going by, so-far. If it ain't broke, why fix it? But, then, I got the elevated wear metals in that last UOA, so, that's what got me thinking if maybe there's something that could offer even better protection. I'm very interested in where those wear metals came from.
 

john_pifer

Thread starter
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Nashville, TN via Memphis
Originally Posted By: 4WD
Originally Posted By: john_pifer
Originally Posted By: Linctex
Originally Posted By: john_pifer
What do you guys think? Experiment, or stick with what has worked?
IMHO (YMMV) ..... with almost 200,000 miles, I'd run a 5W-40 or 15W-40 HDEO from this point forward.
It's at 201K now. Last oil change was at 198K. I'd be resistant to going to a 40W. If I went up in viscosity I might try a 10W-30. At most, M1 0W-40, which, I understand, is pretty thin for a 40. But, these days, I do like the idea of low NOACK % and fewer VM. So, a 10W-30 is attractive. Again, also, I'm now idling for 60-90 min. per week, and I drive pretty fast on my commute. So, maybe a 10W-30 with a bit higher HTHS than the current M1 EP 5W-30.
Another thought is watch for Delvac 1 5w40 to come on sale … it has similar HTHS to 0w40 but 5w40 is a spread I like … blend of GIII/GIV … stellar in the Blackstone summation … once in a while Walmart.com runs it for $23 Or… https://www.exxonmobil.com/Xomfl/Core/Handlers/PDFHandler.ashx?component=PDS&downloadUrl=https://www.mobil.com/English-US/Commercial-Vehicle-Lube/pds/GLXXMobil-Delvac-1-LE-5W30?p=1
My only concerns with going the HDEO route would be, 1, the extra ZDDP possibly fouling the catalytic converters, and, 2, this truck has VVT-i. And I've never had a CEL pop...ever.
 

john_pifer

Thread starter
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Nashville, TN via Memphis
Originally Posted By: Patman
I have used only one oil for the life of my Corvette so far smile (but it's the end of the road for that, as I'm going with M1 5w30 ESP formula next)
Intriguing oil. Higher HTHS for better timing chain shear protection, and low NOACK as well. And not too much ZDDP to worry about fouling cats. What's the VOA look like? Good doses of moly & boron? If only it wasn't so pricey.
 

Patman

Staff member
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Location
Guelph, Ontario
Unfortunately there isn't a recent VOA that I can find on M1 5w30 ESP so I'm not sure what the boron and moly levels look like. I hear you on the price! It's not very reasonable at all. ($16.79 per liter here)
 
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