fengqiu 6 Report post Posted January 24, 2017 (edited) Hello everybody! I just recently got myself a new shiny e30 with a m50b25 conversion all done I was just wondering what oils you guys have in your diff - standard e30 manual gearbox - e30 M50B25 - Supercheap has recommended Penrith 15w60 full synthetic... but that seems to be very heavy oil, it's what the previous owner put in. I just want to confirm that this oil is okay for the engine coolant - probably going to get nulon green? I'm new to bmws so any help is appreciated ! Thanks! Adam Edited January 24, 2017 by fengqiu Quote Share this post Link to post Share on other sites
