What is the white film on dipstick when checking oil level? Also on underside of cap.
Wednesday, November 24th, 2010 AT 4:36 PM
1 Reply
CARADIODOC
MECHANIC
33,873 POSTS
That's moisture condensation from many short trips where the engine doesn't reach normal operating temperature to boil the water off. A weekly trip of 20 highway miles will reduce that buildup.