Heu guys, I'm about to do my oil change on my 330i. The previous owner had serviced it with RP, I have Mobil1. Is there any need to do a engine flush before switching to Mobil1? Is there anything I should look out for before doing this? I used the search function before I made this topic...

My e46 is about due to get an oil change so yesterday I went out and invested in 8quarts of Royal purple synthetic. After I drained all the oil out of the car, I opened the filler cap and I noticed all the nasty sludge on it and the cam cover. I had seen it before but I figured that before I put...

Ok Fellow Fanatics... Can we get a poll started as to what Fluid works best for these trannys.. Redline / MTF-LT2 Royal Purple / Syncromax BMW OE / Castrol MTF-LT2

I am always open to trying new products with an open mind and after hearing/reading so many good reviews i thought id give Royal Purple a try. So i bought royal purle oil (5W30) last week and my cars performance dropped!! :banghead: I never thought full synthetic oil could make such a negative...