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I ran my Lincoln 4.6 four valve very hard, and with 9,000 mile plus OCI. Every oil analysis was noted that the oil (M1) could have lasted at least another 2000. I run Mobil 1 to 10000 regularly and have yet to see M1 oil that is not up to that mileage, at least. The dark oil means the oil is...

Originally Posted By: tig1 No one has used more M1 oils than I have .... I've been using Mobil 1 since 1978 in multitudes of my family's cars and trucks.... I've also been UOA since then on it too. I've much confidence in the oil over those 31 years.

Originally Posted By: buster Quote: ExxonMobil has certified to API that its 5W-30 Mobil 1 product meets ILSAC GF-4 and API SM requirements. .... but that doesn't let XOM off the hook.... Yes, it does.

Originally Posted By: Hethaerto I know a few people that use Mobil1 exclusively. Why exactly do Mobil1 users believe so steadfastly that M1 is the best synthetic oil on the market? In thirty years of Mobil 1 use, I have never had a bad UOA. (I UOA at almost every OC.) In fact, the UOA have...

I change when the engine is a quart low, which is 8500 on my Dodge and 9500+ on my Element. That way, I don't waste the quart of Mobil 1 for a few thousand miles use. The UOA always tells me to extend my OCI 2000 miles.

All the rampant speculation based upon the suppossed accusations of a competitor, and the statements condemning ExxonMobil for making the same molecule out of a different base stock, have largely driven me from participation in this forum. It's now a lot overbearing, blustering "snobs" and...

Mobil 1 5W-20 in my E for good history and to good effect.

Originally Posted By: rg200amp The issue is that there 5w30(pending the labresults) dose not meet API SM grade, and it dose not mee GF-4 specs. Hearsay and unproven contention and further, you have no idea of the facts. I am so disappointed in this site and its "citizens".... So many...

Originally Posted By: Durango I use Mopar filters from the dealership as a standard. Durango I have the same engine. Still, It's a drainback valve issue in the filter.

Originally Posted By: PandaBear Unless the engine oil is way out of whack, it is almost impossible to find out what oil is in the crank case after running it for a while. That is just not true.

Originally Posted By: dnewton3 You want a reliable answer? Get a UOA and find out just how accurate the OLM is. BINGO!!

Originally Posted By: TeeDub Highly recommend using a pint of the Amsoil Engine Flush first (or even better AutoRX), to clean out previously formed oil deposits. This minimizes any seal related issues and will get you optimum results more quickly. Not needed or required. You sound like a shill...

Originally Posted By: Johnny If you have been using Mobil 1 for 20-25 years, why switch. You will be hard pressed to find a better oil for your application. Yup!!! I shake my head at some advertising...

Originally Posted By: ARB1977 Before learning about BITOG i ran Mobil One 5W30 SS for my Tacoma's first synthetic change (9K) at the 500 mile mark the oil started turing fairly dark...alittle to fast for my liking. So i stoped using it and went with Redline instead. Coming to find out even at 9K...

I had a rather nice Lincoln Mark VIII with a bit more BHP than normal as well. What a fun ride to go picking on Mustangs with... ((Sigh)) You won't be disappointed with sampling and noting what's going on in your engine. It's a good thing, but habit forming! I had a K&N on my Lincoln for ten...

Originally Posted By: daves66nova If i were to add a pint of atf to 4? quarts of 15w40 and the bike calls for 10w40,what does it equal out to? A ruined engine and toasty clutches....

I have a 06 Honda, and changed it out at 1800 miles. The analysis came back that it was regular Mobil 5000 oil with leftover assembly lube (heavy Moly). The use of any other high quality oil is fine, and does not affect break in. My engine was not fully broken in until 7500 miles or thereabouts...

Originally Posted By: mikeg5 Originally Posted By: chet2 10k and you base this on what??? you dont even know what car he is driving and driving style.. M1 has shown some [censored] 10k mile oci's... the EP MAYBE ok with that He has stated it is a... 98 mustang gt v8 5 speed 147k miles That...

Originally Posted By: Michelob Yes I have seen those comments about Pennzoil. Don!t know if it is still parraffin based but Schaeffers is parraffin base. Oh, Good Grief!

And through it all, I still get great UOAs with Mobil 1.... >