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Thanks for the replies! I know nobody knows what the secret sauce of AP is, just wanted to make sure there wasn't something out there that I wasn't aware of. Originally Posted by TTK Originally Posted by AirBull Same viscosity, 0w-20. I have 2 or 3 quarts leftover of 0w-20 AP from my last oil...

Same viscosity, 0w-20. I have 2 or 3 quarts leftover of 0w-20 AP from my last oil change and I decided to go with M1 EP 0w-20 for my next fill in large part because M1 won't give a rebate on the AP this rebate period. That and the fact when I'm only going to go out to 7,500 miles tops on the OCI...

Keep your motor oil temps below 230°F and 5w30 I believe is still the preferred way to go. Walmart just rolled back the price on their new AP to $39.84/5 qts, so that makes my decision for me that much easier for my LS7 and L86 (0w20 M1 AP).

The GM GenV LT engines have direct injection and therefore I believe one of the ways to combat carbon buildup is to require low SAPS. The new GenV LT5 motor in the new ZR1 is GM's first engine to offer both Port and Direct Injection, just like what Ford is doing with the Gen2 EcoBoost motors.

So GM is now using Mobil1's new 0w-40 ESP with dexos2 rating for all new 2019 Corvette's, and as you will see from a reply from Tadge Juechtner, Corvette Chief Engineer, he's recommending that all C7 Corvette's from 2014 onward switch from the previous 5w-30 recommendation to this new 0w-40 ESP...

Was at Wal-Mart last night looking at my options for my new GMC Yukon Denali with the 6.2L V8 in it that calls for 0w20 (essentially the same engine as in the Corvette that calls for 5w30,) and I saw this Mobil 1 0w-30 AFE product. Same GM Dexos 1, GM 6094M, and API CF specs. Being in Central...

Interesting. M1 5w30 EP is not on the list. M1's website says their new AP is the #1, and EP is the #2, for my Dad's LF3 twin-turbo, DI 3.6L V6. Is LSPI not an issue with this engine? 10.2:1 CR, twin-turbos, and DI.

Part of the problem is these oils have been changing over the past 2,3, or 4 years that unless it was tested recently, we can't be certain as to what it still is! So what are the advantages of 0w40 again? Better protection of the engine? Disadvantages would be? Reduction in mileage? Wear out the...

I'm inclined to just stick with M1 5w30 for both my ZO6 and Lincoln, as I'm not as certain as I thought I was about the Extended Performance; (still considering the M1 0w40 for the annual Z06 oil change.) I have no aspiration in going even up to 10,000 miles on my oil in any vehicle, let alone...

I know this has been discussed before but I'm still uncertain on whether or I should change from 5w30 to M1 0w40 FS on my LS7 Corvette? GM seems pretty adamant in all of their literature to only use 5w30 DEXOS1, but I did notice in the '16 Cadillac CTS owner's manual that they say you can run a...

I've seen a couple of sites now who have tested the wear protection for Mobil 1 5w30 and Mobil 1 5w30 Extended Performance, and the numbers are quite different between the two: 118,000 PSI for the M1 5w30 and just 86,000 PSI for the Extended Performance variety. M1 promotes the EP product as...

One thing that has me concerned is the low viscosity cSt @ 40°C for the Delvac 1 ESP 5w40, every other CK-4 5w40 is in the 90's.

Originally Posted By: Bighorn2500 Originally Posted By: AirBull I have a '15 WK2 EcoDiesel and made the switch to Rotella T6 about 6k miles ago at my last change. I even called Jeep and had them send me out a new Diesel Supplement manual, but it was still the same v.1 that I had; (they are on...

Originally Posted By: DrRoughneck Originally Posted By: AirBull Actually, the Turbo Diesel Truck comes in 4qt jugs. Looks like the new Delvac 1 ESP is superior with the CK-4 rating. PepBoys has it for $30.99 a 5qt right now, with free shipping if you buy two. Apparently Rotella T6 will have new...

Actually, the Turbo Diesel Truck comes in 4qt jugs. Looks like the new Delvac 1 ESP is superior with the CK-4 rating. PepBoys has it for $30.99 a 5qt right now, with free shipping if you buy two. Apparently Rotella T6 will have new CK-4 rating as well, but I can't find any specs on what they did...

I like the Shell Rotella T6 that I believe FCA is using on the EcoDiesel's now, but I see two other oils that I could go with from Mobil 1 at WalMart: Mobil Delvac 1 ESP 5w40 & Mobil 1 Turbo Diesel Truck 5w40. Big difference in the tech specs (from M1's website.) The Delvac 1 ESP has the new...

I have a '15 WK2 EcoDiesel and made the switch to Rotella T6 about 6k miles ago at my last change. I even called Jeep and had them send me out a new Diesel Supplement manual, but it was still the same v.1 that I had; (they are on v.7 now.) I printed a copy of the oil change and put it in my hard...

They also had that anti-theft device on 5qt jugs of Shell Rotella T6 going for $21.xx when I was there last week, (all one or two of them left on the shelf, that is.) This week, they were all out!

I saw it at my local WalMart in Cedar Park last night and didn't originally find this thread. They started stocking the shelves with all the new Extended Performance oil filters a couple of weeks ago, but just put the AP oil up this week. I still don't see the justification for the nearly 2x...

Originally Posted By: kschachn Originally Posted By: AirBull I noticed that WalMart started carrying these Mobil1 Extended Performance Oil Filters lately, but just last night I noticed that there is a new Mobil1 product that I have never even heard of, (or can't even find on their website:)...