Mobile 1 & Moblie 1 EP Q

Old school Bill, most of the top end autos do not require oil changes until

10k. The extended version of Mobile 1 is not new they have been using it for several years. Both versions meet the manufacturers warranty for oil use the difference is in the frequency of RECOMMENDED changes. The recommended change interval is only that and use of extended life will not violate any vehicle warranty in the US by Federal Law. I have a pick-up truck with 150,000 miles on it and I have been changing the oil every 7500 or 6 months which ever comes first. The biggest thing was finding an oil filter that lasted 7500 and I just changed it out twice. Now there are several brands on the market that last 7500 miles. Harley Davidson in the past couple of years got on the synthetic oil band wagon with their screaming chicken synIII after years of saying synthetic oil was snake oil, now all their bikes recommend oil and filter changes at 5,000 miles. The times they are a change in, don't get in a rut keep an open mind.

Thanks,

I intended to mention that one would (by default), have to abide by the manufacturer's specifications and requirements for recommended oil & filter change intervals, NOT on what the bottle of oil says.

All that being equal: Frequency of change intervals, similar driving circumstances & conditions, AND abiding by the DC Jeep Warranty requirements...then what is it?

... And it's MOBIL 1 NOT MobilE 1.

Pardons please.

I was told by the folks at Exxon Mobil that EP did not satisfy all of DC's Jeep Warranty Requirements and for that reason they said one should not use it while the vehicle is under warranty. Even following the Jeep recommended change intervals. Same as for Mobil 1.

Mobil 1 yes ...Mobil 1 EP no.

What is it?

It is what the bottle says and DC cannot dispute that under Federal Law. I have only changed my oil in my 04 TJ twice. Besides Mobile 1 stands behind their products and realistically how would DC know how often you change your oil unless you tell them? They cannot tell by looking at it and if it looks a little dirty you just say that it is time for an oil change.

Try here

Thanks,

Yes, I have read all of the text on the Mobil Oil web-site. No problem with that. Or DC really...

I guess it's up to the manufacturer to say yea or nay. But how do they know what you use? I believe the burden of proof is on you. I guess it's a matter if semantics (Merriam Webster On-Line Dictionary: semantics; se-man-tics; 1, 2, 3b).

???

I agree and that is what I was saying. BUT it does not specify a particular type (dino, synthetic, blend, et al), nor does it say the oil must be "new" (in your document). Only the weight and frequency.

I'm guessing that since the E-P oil is a "new" product, D-C hasn't "evaluated" it yet.

I seriously doubt Mobil would do anything but ignore or laugh at any request for a new engine or financial assistance for a rebuild if you claimed your Jeep engine failed while using their Mobil 1 EP oil and Mopar voided the warranty due to use of a non-certified oil. And if the oil change intervals were at 10,000 miles, Mopar would void the warranty for that reason alone. And if Mobil's Mobil-1 EP didn't meet all of Mopar's SAE certification requirements for an engine lubricant, Mopar would dishonor the engine warranty in that case too. For any automotive engine manufacturer to warranty a blown engine, you had better have written receipts for either oil changes or oil and filter purchases in a quantity sufficient to indicate the oil had been changed often enough to meet the engine manufacturer's oil interval change requirements.

A recent thread on an Internet-based Jeep forum talked about the same problem with Amsoil refusing to help after an engine blew using their oil. Amsoil reps have always claimed Amsoil would cover an engine if it failed while using their oil and the engine manufacturer voided the warranty because many of Amsoil's products haven't been SAE certified. Amsoil basically told the guy to go pound sand, refusing to help in any manner.

If you're going to expect an engine manufacturer to honor an engine warranty, you had better be able to prove you met every requirement in the owner's manual. And if you expect an oil manufacturer to help if the engine manufacturer voided the warranty because the oil didn't meet the engine manufacturer's published requirements, you need your head examined. :)

Coasty wrote:

I guess Jerry says it best. He usually does.

My question is just this, really:

Will Mobil 1 EP; SAE 10W30 Synthetic Motor Oil harm a new ("their") DaimlerChrysler 4.0 Liter In-Line Six Cylinder Motor, following the manufacturer's (D/C's), recommendations and adherence to recommended service intervals, based on driving habits and conditions as specified in The Warranty and The Owner's Manual.?

Does anyone know?

Sounds like no one really knows...

Time loves a hero, but there hasn't yet been enough time to know.

-- msosborn at msosborn dot com

That's wrong.

Steve .