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things to do before dyno day

Originally Posted by synolimit Why do you say German Castrol? You talking about M1 0-40 euro oil? I'm going off my UOA. They weren't bad. Just not as pretty as

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Old 11-28-2013, 05:28 AM   #1 (permalink)
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Originally Posted by synolimit View Post
Why do you say German Castrol? You talking about M1 0-40 euro oil?

I'm going off my UOA. They weren't bad. Just not as pretty as RL. And with the thinness, in the WRX's, those motors just burned right though it. I used RL there too and never lost a drop. This is the first motor I'm actually losing oil between changes. Same break in etc so I don't know whats up. If I ran M1 I'd probably lose it all by 3000 miles.
Yes the 0 wt. oil.

Eh... you might want to check the TSB on oil consumption. I don't know what role the particular oil you used played a role (if any), but this is a known problem that crops up from time to time...
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Old 11-28-2013, 05:56 AM   #2 (permalink)
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Yes the 0 wt. oil.

Eh... you might want to check the TSB on oil consumption. I don't know what role the particular oil you used played a role (if any), but this is a known problem that crops up from time to time...
Well thinner oil will leak past the valve seals and piston rings and get burned up in combustion. This is why RL says their oil is like a full 10w higher than others with the same numbers. If its a bad oil or left in to long, then you scare the walls and such leading to more leaking. Guys with over a 1qt per 1-3k have done something wrong. Subi was an issue because all turbos leak a little and the M1 just shoots by. I'd have to compare 5w30 and euro to see a difference. I ran 5w40 RL in the subi to lose zero over 3-4k. That's like a 5w50 M1.
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