Quote:
Originally Posted by DXMachina
Breaking my own rule by replying to you.. again.. but
I had an instant charge of mayo on the dipstick caused by mixing a Halfords 10w40 semi-synth with a Castrol 5w30 fully synth. It formed in a single day over a distance of less than 10 miles, it completely disappeared inside a week over about 250 miles, and it never recurred
maybe a fluke but it counters the point that dipstick mayo is always a head gasket.
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Have you got any pics of actual coffee cream streaks in the oil ??
You can't get water from a reaction between two engine oils, BUT you might get some sludge as a result of it dissolving layers of varnish. That will be dark brown though and can be temporary.
Mixing oils of different base stocks is not a great idea regardless of the fact all the oil companies say it's OK.
If this was water in the oil, then the CCV or oil cap seal must be getting damp someplace. Oddly enough a good oily type always checks that oil cap O ring and the dipstick O ring every change, cos the can fail.
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2003 V40 1.9TD Mods: Scratches, bent bumpers, raised REAR mats & internal mud guards.
SHELL ULTRA 5/40 & LIQUI MOLY CERATEC.
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