[GunMetalGrey]

My dealership told me they cover the full cost of the first 4 oil changes using a Dexos 5w30 part #19353385 but said that Mobil 1 5w30 part #10953468 would be twice the price, do you think Mobil 1 is worth the extra price? In other words, how much better is it?

I know that Mobil 1 0w40 dexose 2 is the new the recommended oil for our cars, however it is almost twice the price of the mobil 1 5W-30 which is twice the price of what they cover for the oil change and it’s weeks away as it comes from the USA and is not yet stocked in dealerships in canada

[sengli]

I went with the dealer recommend oil for my first two free oil changes. So Its all about what you think. If its dexos rated and they recommend it. Guess it is what is called for for warranty.

I will be using mobil 1 for the rest of the cars days. Its like $25 for 5 quart jug at wally world.

[greaser2]

As said, buy at W-mart and buy it and do ur self. Last time I got a free oil change, got my C7 back with a dent. Took them two weeks to fix. I also use M1 in my new cars, but many oils will work just fine. Use Dexos per the manual. You do not need the M1 0W40, it is more for daily and track oil.

[GunMetalGrey]

Thanks for the feedback guys!

[Grumpy1]

I did the upgrade for my first free change and will do the same for my second.
I've used Mobil 1 in quite a few cars/motorcycles and have always been pleased with their products.
What's an extra 30-40 bucks for peace of mind....

[Frisbey]

I still find it interesting that Chevy performance recommends 0W-40 demos 2esp in the U.S. but not in Canada 🇨🇦,
Anyway, if you find your way down to Whidbey Island in Washington, our local dealer stocks the new oil, easy to change the oil and filter yourself along with the diff fluid and register the oil change on the my Chevrolet app.

[GunMetalGrey]

Originally Posted by Grumpy1

I did the upgrade for my first free change and will do the same for my second.
I've used Mobil 1 in quite a few cars/motorcycles and have always been pleased with their products.
What's an extra 30-40 bucks for peace of mind....

True it’s not much and truthfully I’m not concerned about the money, really I’m looking to see if there is any hard empirical data showing that Mobil 1 is superior.

[GunMetalGrey]

Originally Posted by Frisbey

I still find it interesting that Chevy performance recommends 0W-40 demos 2esp in the U.S. but not in Canada 🇨🇦,
Anyway, if you find your way down to Whidbey Island in Washington, our local dealer stocks the new oil, easy to change the oil and filter yourself along with the diff fluid and register the oil change on the my Chevrolet app.

After looking on his paperwork I think he got mixed up and thought I had a ZL1 1LE so he said Mobil 1 0w40 was not recommended for the car, regardless you’re probably right since they probably can’t recommend an oil they don’t stock yet...
Probably goes to show you it’s not a big deal unless tracking the car hard as the dealership did recommend 15w40 for tracking.

FYI there are only 2 other ZL1’s in my town/city of 350,000 ppl, rare cars here in canada, so I don’t think the dealerships get asked this often... having said that he knows the 2019 corvette has the 0w-40 oil cap...

[1hprush]

Maybe you should consider another dealer if they don’t know the difference between a ZL1 and ZLE. That wing on the back just gives it away!

[GunMetalGrey]

Originally Posted by 1hprush

Maybe you should consider another dealer if they don’t know the difference between a ZL1 and ZLE. That wing on the back just gives it away!

Haha yeah this guy hasn’t seen my car before, I’m just impressed he did a bunch of research, canada does not have the customer service nor the performance knowledge you have in America, every time I go down to Phoenix I’m impressed! but yeah he should have asked and clarified...

[Frisbey]

Originally Posted by GunMetalGrey

After looking on his paperwork I think he got mixed up and thought I had a ZL1 1LE so he said Mobil 1 0w40 was not recommended for the car, regardless you’re probably right since they probably can’t recommend an oil they don’t stock yet...
Probably goes to show you it’s not a big deal unless tracking the car hard as the dealership did recommend 15w40 for tracking.

FYI there are only 2 other ZL1’s in my town/city of 350,000 ppl, rare cars here in canada, so I don’t think the dealerships get asked this often... having said that he knows the 2019 corvette has the 0w-40 oil cap...

Interesting,
My car is a ZL1 and came from the factory with the 0W-40 cap on it
I’d say they recommend it, but from what I’ve read, it’s the low ash in the oil on the 0W-40 esp that’s recommended for direct injection engines.

[GunMetalGrey]

After reading more posts on this topic I will be switching to 0w-40... I should switch the title of this thread away from 5w30 but don’t know how to edit it... so now the only question is Mobil 1 or not? My understanding is that the major benefit of mobile1 0w 40 that it can also be used for the race track, I won’t be racing until the summer so probably not worth it right now, I’ll just change the oil before I race.

[GunMetalGrey]

Originally Posted by Frisbey

Interesting,
My car is a ZL1 and came from the factory with the 0W-40 cap on it
I’d say they recommend it, but from what I’ve read, it’s the low ash in the oil on the 0W-40 esp that’s recommended for direct injection engines.

Yes I read that too, but apparently it comes at the expense of internal wear protection, so pick your poison? Maybe better off doing a catch can and going for better wear protection?

I also read that the 0W 40 is better for the high temperatures our engines apparently operate at on a daily basis let alone the racetrack.
This is one of the posts that caught my attention in response to Al Ops statement about why they changed the oil recommendation for the Camaro and corvette



“With oil temps in the LT4 approaching and perhaps exceeding 250F+ under heavy load, I (personally) would never trust a 0W-40 or 5W-40. 5W or 15W-50 makes perfect sense to me. Especially considering that a motor oil with low ash content, though it preserves our CATs and significantly lowers the coking and varnishing effects of GDI, will sacrifice the additive profile that reduces wear. At 250+ oil temp, 50W is about as thick as water, I want all of the viscosity and wear protection that I can get.

I will change out more frequently with a low ash Dexos 2. Understanding that with a low ash profile, my intake valves and blower bricks are better protected from the goop introduced by the PCV. However, the compromise is that my wear protection profile is reduced because those same high ash components are what protects my internal components from wear.

The question however, remains somewhat unanswered; Is M1 ESP 0W-40, now a recommended fill for pre 2019 Gen 6 LT1/4?

With motors that run on the street with oil temps at 210+, I truly hope so. IMHO, at the oil temps that an LT4 operate, 5W-30 lacks the viscosity to protect our powerplants long term.

I personally will run 0W or 5W-40 Dexos 2 on the street. I will always run at least a 5W or 15W-50 under heavy load/track conditions.

Do your research gentlemen/ladies; there is a significant difference between 100% synthetic and full synthetic. SIGNIFICANT“

[greaser2]

“With oil temps in the LT4 approaching and perhaps exceeding 250F+ under heavy load, I (personally) would never trust a 0W-40 or 5W-40. 5W or 15W-50 makes perfect sense to me.

Not sure what this guy is thinking that the viscosity difference is so significant at 250 F that he wouldn’t trust a 40 weight???