quote:
Originally posted by ekpolk:
You've posted about 100 times about your dislike of Mobil-1. Now, would you care to share with us why you feel this way?
In one of my posts, which you probably missed, I wrote how my suspicions were raised when, one day several years ago... I'm not sure now, maybe seven or so years ago, I changed out the old Mobil1 (at 3,000mi), put in new Mobil1, and for the first time, my engine turned into a clatterbox. I started wondering then if they had changed the formulation. I only left it in for about a thousand miles, and changed it out for fresh Mobil1, and the engine was still a clatterbox. I decided it must be my imagination and kept using it. The engine had about 100k on it at that time; the car was a Saab 900 8-valve 2.0 liter, one of the most bulletproof engines of all time. By 180,000 miles, the compression was way down and that should NOT have happened. I personally yanked head off and had a machine shop clean it up (I was assuming it was a valve problem) but the compression didn't come up, so I got rid of the car. So Mobil1 let the rings or cylinder walls on that motor wear out. It was NOT my first 900, it was my 4th, and two of the previous engines I had taken past 200,000 miles with no appreciable decline in compression. Then I got into volvos (RWD 2.3 liter motors), and the same thing started happening -- I'd swap them to Mobil1 and they'd turn into clatterboxes.
My very first post on this board, and the reason I joined, was to ask why, after a good hard 100+mph run, the Mobil1 in my Volvo, my engine would be INCREDIBLY loud, until an afternight cool off. Most folks on this board said it shouldn't be happening, but it was.
Then, through this board, I discovered GC, put it in my old Volvo, and you know what happened? No more clatterbox, engine still quiet all the time, even after extended 100+mph runs.
Do I KNOW that something is wrong with Mobil1? No, not for sure. But I'm putting the alert out there, so that folks who know better than me have a heads up and can keep an eye on what's going on. Maybe there is something wrong at Mobil corp, maybe there isn't. But if there is, the problem is only going to fixed if they know we're onto them.
I just bought a new Scion tC. Am I going to run M1 in it? At this point, heck no! Not until some folks can conclusively show me I'm way off base. Right now, all we seem to have is opinions and conjecture. Better safe than sorry.