Originally Posted By: tig1
Originally Posted By: demarpaint
Originally Posted By: Mr Nice
A few years back Mobil 1 had a test with a Mercedes Benz running 24x7 and tore the engine down with little wear.
Not surprised by Mobil 1 protecting the engine.
I remember seeing that too. Once an engine is warmed up and running it doesn't get any better than that for the engine. So those tests don't impress me much. If you want to impress me show me how well the oil does in cold climates being started and stopped with cool down periods in between. Short hopping a cold engine, do a 100K mile test of that. Then tear it down and mic it up. May the best oil win.
A couple of things.
1) The other oil producers don't seem to do these kind of test, and they are expensive to perform.
2) Since you believe cold temp starts are a better indicator of engine wear(actually XM does have a cold start facility for testing)doesn't that bode well for 0-20 and 0-30 oils.
No argument here, I just tossed my 2 cents in about these types of tests and my opinion of them. I heard about their cold test facility, and saw the video. However that's not used much if any in their advertising, or their test result ads.
Since the most wear occurs during a cold start and while the engine is coming to operating temps, that's what has a large impact on engine wear. That's what I'm most interested in. Once an engine is warmed up and running that's when the least wear is occurring. However people hear about tests showing an engine running for hours on end, day after day they're interested. That's great for the oil companies advertising, and the easiest on the engine, win win. We're Bitoger's we know better.
The company that can achieve the lowest amount of wear during the most crucial time, cold starts and warming up is a company I'm interested in. I'm not picking on XOM I've used their oils for years. I also doubt I'll be seeing much advertising showing my type of test from any of the oil companies.