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My point is, the GT350 owners/Ford are not worried about oil fouling their cats, compared to seized engines. Since my Z06 barely uses any oil, I am not worried about it hurting my cats. I run 15w-150 Mobil 1 all the time. I track my car 4-8days per year, and i am not going to be switching back and forth. If I didn't track my car, I would just stay with stock.
Originally Posted by X25
What you're looking at Tadge's statement is regarding Mobile1 0W-40 European Formula. What is now recommended for our engines is Mobil1 0W-40 ESP, and it's a completely different formulation.
Regarding GT350, that engine's design is flawed, and the oil burning issue is only one of the problems it has. I don't see the connection to our cars, though. LTx engines are not high revving engines, not designed for it at all, and are usually pretty good (low) on oil consumption, even with aggressive use.
I know of a lot of instances where cats of especially the OEM FI cars failed, despite being completely stock, like C6 ZR1, C7 Z06, etc. I take these issues very seriously to be honest, especially since I intend to run my car at the track quite a bit.
My point is, the GT350 owners/Ford are not worried about oil fouling their cats, compared to seized engines. Since my Z06 barely uses any oil, I am not worried about it hurting my cats. I run 15w-150 Mobil 1 all the time. I track my car 4-8days per year, and i am not going to be switching back and forth. If I didn't track my car, I would just stay with stock.
This. 0w40 might be better for the cats but what about the engine?
The fact that the early model LT4's came with 5w30 as factory fill is good enough for me to keep using it rather than spending double going with something else. I know it's still dexos approved but idk, i been using 5w30 EP oil in all my cars and my UOA's have been perfect.
Plus it's available at walmart. I can just go in and get as many 5qt jugs as i want
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'22-'23
Originally Posted by RobGZ06
This. 0w40 might be better for the cats but what about the engine?
The fact that the early model LT4's came with 5w30 as factory fill is good enough for me to keep using it rather than spending double going with something else. I know it's still dexos approved but idk, i been using 5w30 EP oil in all my cars and my UOA's have been perfect.
Plus it's available at walmart. I can just go in and get as many 5qt jugs as i want
The older European formula Mobil 1 0W-40 is available at Wmart too and is better oil. GM recommended it at one time.
Is 0w-40 the factory fill for 2019 Corvettes from Bowling Green?
This is a difficult question to Search for on this forum and I did not want to start a new thread so I thought I’d just ask here.
Is 0w-40 the factory fill for 2019 Corvettes from Bowling Green?
This is a difficult question to Search for on this forum and I did not want to start a new thread so I thought I’d just ask here.
Yes, it is and has been discussed in many threads since last year at this time. HOWEVER, it isn't just any 0W40 it is a blend designed to be safe with Emission Systems (ala catalytic converters). It is called Mobil1 ESP 0W40 and is Dexos 2 rated. The reason GM recommends it is because the Mobil 1 15W50 oil recommended for track usage is supposed to be removed after the track event. The reason GM recommends that is because the 15W50 oil increases fuel consumption and would require certification of the fuel mileage using that oil if approved for the street. The oil also has more anti wear additives for older engines which can decrease catalytic converter life and could cause increased warranty claims on the 8 year/80K mile emissions system warranty.
The oil is only available online and at dealerships. The cost is about $10/quart which is about a dollar more than what the auto parts stores sell the 5W30 for.
The ESP 0W40 gets around all of those issues by not affecting fuel mileage or decreasing cat life.
By the way you can still use the 5W30 or the Mobil 1 15W50 on the track. As it turns out the 0W40 is the best overall choice. It will give lower operating temps for cold starts and stands up to track use while being perfectly suitable on the street.
Bill
Last edited by Bill Dearborn; 03-24-2019 at 11:45 PM.
So, after much reading of the previous threads on the topic, I have concluded that the green-labeled ESP formula 0w-40 is the recommended 0W-40 for our LT4 engines. Meanwhile, I just took delivery of a Durango SRT with the 6.4L Hemi. For THAT motor, FCA recommends "Pennzoil Ultra Premium 0w-40 engine or other equivalent Mopar oil that meets FCA Material Standard MS-12633..."
Oy. I don't recall seeing that standard listed on any oil containers.....HOWEVER: Pennzoil has "ultra platinum" oil that comes with the SRT logo on the bottle for about $15 per quart, and they have "Platiunum Euro" that does NOT have the SRT logo, for about $10 per quart. Sound familiar?
Wait so what's better then for a street car that gets ZERO track use?
The standard 5w30 or 0w40?
I can't imagine that it could ever make a difference in such a case. There is no way in hell that you could put "track day" stresses, or anything close to it, on a Z06 in street driving. Even if you were suicidal, you would likely achieve suicide (or jail) before you beat your engine oil like a track session might.
I can't imagine that it could ever make a difference in such a case. There is no way in hell that you could put "track day" stresses, or anything close to it, on a Z06 in street driving. Even if you were suicidal, you would likely achieve suicide (or jail) before you beat your engine oil like a track session might.
Thank you for this post. I almost fell out of my chair laughing.
I can't imagine that it could ever make a difference in such a case. There is no way in hell that you could put "track day" stresses, or anything close to it, on a Z06 in street driving. Even if you were suicidal, you would likely achieve suicide (or jail) before you beat your engine oil like a track session might.
I didn't mean it like that.
I meant for short trips, trips that involve NO WOT, and some trips that involve SOME, cold start up protection etc etc.
For a street car that doesn't get abused on the track and rather just on the street, would 0w40 be better? I'm debating if paying double for an oil change (about 50 bucks vs 110 bucks for the oil itself) is worth it.
Yes, it is and has been discussed in many threads since last year at this time. HOWEVER, it isn't just any 0W40 it is a blend designed to be safe with Emission Systems (ala catalytic converters). It is called Mobil1 ESP 0W40 and is Dexos 2 rated. The reason GM recommends it is because the Mobil 1 15W50 oil recommended for track usage is supposed to be removed after the track event. The reason GM recommends that is because the 15W50 oil increases fuel consumption and would require certification of the fuel mileage using that oil if approved for the street. The oil also has more anti wear additives for older engines which can decrease catalytic converter life and could cause increased warranty claims on the 8 year/80K mile emissions system warranty.
The oil is only available online and at dealerships. The cost is about $10/quart which is about a dollar more than what the auto parts stores sell the 5W30 for.
The ESP 0W40 gets around all of those issues by not affecting fuel mileage or decreasing cat life.
By the way you can still use the 5W30 or the Mobil 1 15W50 on the track. As it turns out the 0W40 is the best overall choice. It will give lower operating temps for cold starts and stands up to track use while being perfectly suitable on the street.
Bill
Thanks Bill
i just traded a 2017 Grand Sport for a 2019 Z06. (I do not have the Z06 just yet, it’s still in Bowling Green waiting for a truck to bring it to me) My dealer at my request put 0w-40 in the Grand Sport last year. I still have some 15w-50 which I used for track days. I just like the idea of the 0w-40 being acceptable for both uses. I kind of hated to discard all that 15-50 after 150-200 miles after each track day.
I also will have to find the 0W-40 Dexos II around my parts. Only stuff I see here is the Euro stuff which is not Dexos.
I appreciate your reply.
Glenn
Wait so what's better then for a street car that gets ZERO track use?
The standard 5w30 or 0w40?
5W-30. It will protect your non track used car just fine. Reason I’d choose 5W-30 for your application is its cost effectiveness compared to the 0W-40.
I meant for short trips, trips that involve NO WOT, and some trips that involve SOME, cold start up protection etc etc.
For a street car that doesn't get abused on the track and rather just on the street, would 0w40 be better? I'm debating if paying double for an oil change (about 50 bucks vs 110 bucks for the oil itself) is worth it.
I didn't realize the difference in cost. I really don't think you'd ever notice the difference except cost.
02-11-2019, 04:40 PM
