got a ?.....mobil1 and spun bearings

[tribalwrx]

well the ? is i've seen alot of threads out there about mobil1 and spun bearing in our cars, i've seen people contact soa about it but has any one taken a oil sample and contacted mobil about this issue and if so what was there response back?

also i'm sure there is a list of people on here that have stated how many miles/what kind of oil/state of tune/what year the car was when the spun bearing happened and if not i'd like to start one.

Mike

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[young j]

i highly dought it was the oils fault.

[tribalwrx]

not saying it was, hell when mine spun i was running mobil1 in the crankcase, but i see alot of threads about it and was just wondering if anyone had talked to mobil about it?

by the way i started using rotella t 5w40 syn at 4000 miles on the new motor.

[ej20_ftw]

I think it's not mobil1's fault. It's because of the oil viscosity (5W-30).

[tribalwrx]

i don't think thats the only reason, i was runnning m1 5w30 for 60k miles before the bearing went, and had tons of times in the high rpm's at the track and on a open empty highway without any issues, also when we opened up the heads the cam's and valve shims had not shown any wear, i switched to a 5w40 because i do run the engine hard and don't want another bearing failure.

[Gunner]

If 50% of the cars have M1, it is normal to hear that 50% of spun bearings engines have M1 in them. I am sure that M1 has a much larger market share than Amsoil, Redline, Royal Purple, and Castrol etc.

At the same time, I laugh when I read about spun bearings complains when they use 5w-30 on a track (sometimes in Texas heat, no less). And they complain that it was M1's fault.

No, I do not use M1 nor do I work for Mobil.

[bluesubie]

Noone has yet to show proof that the oil failed. Although they have showed proof of poor maintenance, poor tuning and stupid decisions. There a tons of threads to search through in the 2.0 forum.

-Dennis

[tribalwrx]

but does anyone know if someone sent a sample in or even voiced there concern to mobil about it, they want to say don't use it because you may spin a bearing but has anyone contacted mobil to see what they say, thats really what i'm looking to see.

[strohausii]

Is it safe to say if you do not drive your stage 10 vehicle in an energy conserving manner, you should not be using an energy conserving oil?

[bluesubie]

Originally Posted by tribalwrx

but does anyone know if someone sent a sample in or even voiced there concern to mobil about it, they want to say don't use it because you may spin a bearing but has anyone contacted mobil to see what they say, thats really what i'm looking to see.

No samples have been sent in. Most are too eager to jump onto nasioc and post, "WTF? Mobile 1 sUX". Some people have said that they've done used oil analyses prior to the spun bearing and wear was normal.

There have been great uoa's on M1 5W30 and there have been uoa's with very high lead (bearing wear) on M1.

-Dennis

[bulwnkl]

Originally Posted by strohausii

Is it safe to say if you do not drive your stage 10 vehicle in an energy conserving manner, you should not be using an energy conserving oil?

Not unless it is also safe to say that if you do not drive your stage 10 vehicle in a power-maximizing way, you should not use a power-maximizing oil. <which is the opposite of what you said in the quote>

"Energy Conserving" is the same as "Power Increasing" or "Power Maximizing." All it means is that the oil in question will let your engine make a fairly small percentage more power than a reference PAO fluid (that's what most folks want to call a 'true synthetic'). This power increase could be applied to any grade of motor oil, but as it happens the testing and naming only apply to 5W- and 10W-30 oils (and xW20? I don't recall).

There are a number of ways to release more power than the reference PAO, and one of the main ones is friction modification. Frequently (always?), there is some temporary shear allowed as well. The question is only one of what your engine needs for protection. Note that an owner's perception of what it needs (i.e. what makes an oil protect well) is generally only the same as what it actually needs by coincidence.

[bluesubie]

Originally Posted by bulwnkl

"Energy Conserving" is the same as "Power Increasing" or "Power Maximizing."

You sound like an ad for Royal Purple. It gives you more h.p. because it's a "qualifying oil".

-Dennis

[bulwnkl]

Ouch!

I'm just trying to point out that every coin has two sides (and some have far more than that). It gives you more hp because less is wasted plowing through the (unnecessarily?) thick oil.

[Arctic Penguin]

this one AGAIN

[Mechie3]

It's probably due to several things (some already stated):

*high # of users = high number of failures (AFAIK no one has ever calculated the % failures vs users for the oils)

*M1 is often seen as "the" oil by non enthusiasts and new enthusiasts as well and people think it will last for a long time, be a wonder oil, etc

*Many users are new to turbo cars and unaware that they burn oil/need constant checking

*M1 seems to burn off in Subies faster/more than other oils leading to oil starvation as the problem, not so much the oil itself (though the starvation is caused by the oil burning you can argue that the oil is implicitly the problem)

[bluesubie]

Well, why did you bump it?

-Dennis

[Ernest]

Besides spun bearings, M1 5W30 is also responsible for JFK's murder and global warming!