Can I use PUP in a new C8?

[glen e]

hi, I’ve been reading here for years, but I don’t think I have ever joined. I have a question and only probably this forum can give me a non-biased answer. A friend of mine has about three cases of PUP 0W 40 that he used I believe, in a Chrysler product. I have about 1500 miles on my C8, and he is willing to give me the oil. I get the whole dexos R thing, but in this situation, being a daily driver and never doing any type of extreme performance, can I use the PUP until I change it at about 7000 the GM will pay for? I'm 74 and this car is just a grocery getter…..thanks for your advice.

 

[apollo18]

of course! pup is a great oil, theres no reason any 0w40 wouldnt work

 

[glen e]

thank you, that’s my feeling as well.

 

[Snagglefoot]

What you have is the SRT oil. Don’t be afraid to flog it like a rented mule and show those 65 year olds a thing or two!

 

[daves87rs]

Will work just fine!!

 

[02zx9r rev2]

Yes

 

[glen e]

thank you for all your responses. If I put this on one of the Corvette forms, I will immediately be crucified as an idiot, and my engine will promptly blow up within 100 miles of using this , versus the vaunted Supercar mobil 1 that is much more expensive. if I can get the PUP for free, I don’t see any reason not to use it.

as an aside, the only difference between mobile one dexos r supercar, and PUP is additives, right? So what additives would be involved for a normally aspirated chevy engine that are not in PUP?

I used PUP IN my C7 for 50,000 miles with no problems whatsoever. The C7 and C8 engines are virtually identical in make up and spec..

 

[AZjeff]

Pics of the C8 or we don't believe you.

I'm 66 and want to be like you when I get old(er).

 

[glen e]

just finished ceramic coating it and putting on stance SF03 Wheels…

 

[AZjeff]

Hard to imagine that's a Chevy. Gorgeous.

 

[Snagglefoot]

I certainly don’t want to go up against the Supercar crowd but the kinematic viscosity of Mobil Supercar 0W40 is 12.9. The same number for the SRT 0w40 is 13.7 . Chrysler chose it for its 700 HP supercharged Challenger. It can hold its own.

 

[glen e]

sorry, not a sci guy, I assume a larger number is better for kinematic viscosity?

 

[Snagglefoot]

sorry, not a sci guy, I assume a larger number is better for kinematic viscosity?

There are are folks on this forum who would love to explain it. As a result of high rpm running, oil heats up and loses viscosity. Starting with a larger number helps fight that. Supercar also comes in a 5w50 for that reason, so there is nothing deficient about Supercar, but just sayin’ SRT is no slouch either. The thickie crowd on this forum is a fan of having that higher viscosity oil between rotating surfaces such as main bearings for better wear protection. I’ll let them add more info.

 

[pbm]

Sorry to bump an older post but I met a guy in Walmart in Florida last month who was buying up QS 5w40 Europe for his C8. I looked on the Pennzoil website and they make no recommendation for that 6.2 Chevy....Mobil recommends the 0w40 'Supercar'.
Is this guy being foolish or would the QS 5w40 work fine? It meets Porsche A40 spec. so I assume it's a very good oil.

 

[Averroes]

Welcome, nice car.

If you’re under warranty, get the shop to change it.

If out of warranty, you can use Mobil 1 ESP xx-40 weighted oils, they’ll have a HTHS rating of 3.5 or greater which is good for the car.

Since it’s doing small trips, keep oil changes to 5,000 miles or one year, whatever comes first I’d say. If you really want to spend money, go for HPL or Redline oil (along with their gear oils), but stick to the 5k miles or one year interval (personal opinion).

Brakefluid, diff oil, brake fluid, coolant, make sure you have a change interval for these. Enjoy the car, give it the beans when you can!

 

[burbguy82]

hi, I’ve been reading here for years, but I don’t think I have ever joined. I have a question and only probably this forum can give me a non-biased answer. A friend of mine has about three cases of PUP 0W 40 that he used I believe, in a Chrysler product. I have about 1500 miles on my C8, and he is willing to give me the oil. I get the whole dexos R thing, but in this situation, being a daily driver and never doing any type of extreme performance, can I use the PUP until I change it at about 7000 the GM will pay for? I'm 74 and this car is just a grocery getter…..thanks for your advice.

C8 requires Dexos R.

I would not put anything in there other than Dexos R oil, and keep reciepts.

 

[D1dad]

I don’t know what weight and specs it calls for but being under warranty I’d use the oil the manufacturer recommends while under warranty. Heck, a car that expensive should come with free oil changes. Not that I’d want someone else doing it. Save the pennzoil for later.

 

[Patman]

I don’t know what weight and specs it calls for but being under warranty I’d use the oil the manufacturer recommends while under warranty. Heck, a car that expensive should come with free oil changes. Not that I’d want someone else doing it. Save the pennzoil for later.

My 2018 Corvette came with four free oil changes but I didn’t use a single one of them.

 

[D1dad]

My 2018 Corvette came with four free oil changes but I didn’t use a single one of them.

I don’t blame you. I use a reputable tire shop and I don’t like them rotating my tires for free. And I don’t own a vette.