Hi Guys, I fear the worst but with no other running problems/symptoms of nasty things happening, what are the possible reasons for the fact that the little drop of oil I always find in my throttle body has changed from nice pure oil to the dreaded milky mixture???
I hope there is a nice explanation. A bit of background. These pictures were taken two days ago. I cleaned it off and will check again tomorrow. There are no other symptoms of anything wrong going on. There was some coolant around the rim of the expansion tank the other day. I checked everywhere for leaks and concluded that there aren't any, I had topped up the day before and it must have been some spillage.
Any opinions welcome but if its bad, try to break it to me gently.
I would not worry too much, just yet!
The milky colour comes from water vapour mixed with oil. There could be a quite innocent reason for that, that you drive short journeys and the car does not get warm.
On the other hand, (as any good economist would say) there is a possibility that the water comes from the cooling system. I would check under the oil filler cap for signs of mayonnaise, which is usually the first place to notice it. Check on a fully warmed up engine.
If you have to top up with water, how can you conclude there are no leaks??? Obviously there is (are) leaks, otherwise you should not have to top up! (I am not allowed to say "what are they teaching you at school" so I won't
, but logic does not seem to be a front contender.!)
Never mind, in the meantime, check your water level often, don't overfill, and check that on a stone cold engine, parked level in the same place, so you can compare. Do also check the oil filler cap on a hot engine, you should not have any mayonnaise then. If the last check is clear, I would not worry much, just continue to check the water level.