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Well I just found out something interesting with oil and my 44. Since I put the car back in one piece I was running Castrol 20w50. I have faith in the stuff, all of my BMW's have existed on the stuff, and I have had 0 problems, and the inside of my engines look new.............even after 200k. Good stuff.
I recently chamged to M1 15w50 in the 44, in a last chance attempt to quiet my cam followers. (my springs are a little stiff) I noticed my engine temps are 10deg. lower with the M1 than the Castrol GTX.
I also use M1 in the 911 and the MB. I'm keeping the GTX in the BMW.
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Electrical problems on a pick-up will do that to a guy- 1990C4S
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