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This engine has already got close to 400.000 km on it. I dont think it could have done bearing damage, would be ridiculious if engines would suffer catastrofic failure when a coul/spark plug fails or everytime it gets flooded. I was more worried if i should continue on this oil.

This was not the case, the older m50 engines do occasinally have that problem too. Mine is a 1992 M50 OBD1. Often in Cylinder 6 near the firewall, the sparkplug overfills with oil due to valve cover failure and refuses to ignite. But this time it wasnt the case, the coilpack was just not firing...

Hello, Last night i suddenly had a coilpack failure, my bmw m50 suddenly went 5 cylinder. Because I couldn't directly pull over, i had to continue for 2 minutes/ 2km. When I found the coilpack that was bad and pulled it out, i saw the petrol was flooded that much that i went over the spark...

Depends on brand, but i can get Total Quartz 9000 energy for a good price of 25 ish euro LL-01, A40, mb 229.

LL-01 spec is way newer than the M50 engine, but i guess you're right about the fact that it's been working bloody well. And i figured the important viscosity is the 100c one, and valvoline synpower would be in the right range but it doesnt even meet Porsche A40. Then again maybe i'm...

Redline is not an option here. Not a european oil, so it's imported and hella expensive. I just checked, 5 litres would cost approx 105 usd. Aint gonna happen lol. What do you reckon about the Valvoline choices?

Most 5w40 on the bottle will say synthetic technology or something like that. I always check them first on a german webshop because due to strict law it can't say on the bottle synthetic unless it really is a grp 4 or something like that. I also wanna try to stay around 15 cst @100c or a bit...

Hello people, I've been a long time lurker but just registered. I got the following situation in which i'd like to have a 2nd opinion on what would be best. I'm living in the netherlands and i've got a 1992 bmw 325, with the m50 non vanos engine, runs like a champ. Right now it's on about...