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Re: Re: E36 //M3 oil grades
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" <[email protected]>
To: "bmw digest" <[email protected]>
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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