I have just recently purchased my 04 rx-8. After the snow has come and gone i finally got the car out last week and have been driving it regularly. Today i checked the oil dipstick and found a chocolate milk looking, kinda foamy substance on the dipstick. I believe moisture is getting in there or something. The mazda dealership said that sometimes if the car has sat for a while that may happen? Can anybody tell me whats going on here please??? also what kind of oil do you recommend running, 5w-20??

 

Search dipstick.

Closed