Re: Re: E36 //M3 oil grades

[jkerouac <jkerouac@xxxxxxxxxxxxx>]

Re:  Re: E36 //M3 oil grades:
    The extra quart of oil is commonly used on BMW models with 
hydraulic lifters where they are prone to tapping due to lost oil after 
high rev high G cornering sessions such as autocross and track, or 
agressive street (California backwood mountain roads).

'jk
-------------------------
Someone else wrote:


> I don't know the exact amount of oil your engine requires with a filter
> change( 5 qts) but putting too much oil is one of the worst things you can
> do.
> There is so much oil that the crankshaft picks up the extra oil and throws
> it everywhere and can whip the oil with lots of air and cause a complete
> breakdown (cavitation) of your oil pump. I'd be a lot more concerned about
> this that the weight of the oil you use.
> 340,000 miles and still going.
> XX
> ----- Original Message ----- 
> From: "jkerouac" <jkerouac@domain.elided>
> To: "bmw digest" <bmw-digest@domain.elided>
> Sent: Sunday, June 22, 2003 3:14 PM
> Subject: re: E36 //M3 oil gradesre: E36 //M3 oil grades:
>     My '97 //M3 has had Mobil 1 5/30 since I dumped the factory's
> initial oil at 500 miles.
> Oil consumption is 2 quarts per 5000 mile oil change increment.  When I
> removed the head to replace bent valves at 60k miles, what I saw inside
> the motor justified the use of this oil.
>     5w30 was the factory recommended grade when the car was new, and I
> gave it a shot.  Before that I was a strict adherent to 20w50 grades,
> and 3000 mile change intervals.  Current motor oils are that much better
> than those of the past that this grade is more than sufficient for any
> other than race use.
>     I once tried Redline 10w30 for a dyno test.  Can't say if it gave
> me more power.  Redline did get consumed in the motor noticeably
> quicker.  I needed a third quart before 4k miles.
>     Btw I fill the motor with 8 quarts, and never get tappy valve
> lifters even after extreme cornering.
> Ymmv,
> 'jk
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