Moisture around oil cap.

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(01-19-2019 )Sinamarp Wrote:  

(01-19-2019 )Rawze Wrote:  

(01-19-2019 )Sinamarp Wrote:  

(01-19-2019 )Sinamarp Wrote:  I got isx 15 cm2250. I see greenish moisture around oil cap and oil filler neck but nothing on dipstick and no colour change in coolant tank. I see no bubbles but see condensation inside coolant reservoir. Changed coolant reservoir but same problem. Pic attached[/align] [align=justify]

Usally that much green buildup is a head gasket issue. It is green even if you use red coolant.

Any other possible reason for it except head gasket issue? Cold weather?

Only real way to find out is to take an oil sample. Stop at a speedco, they don't do the most scientific testing but with that much residue (likely coolant) they will be able to tell. You need to find out pretty quick, coolant washes down bearings and such pretty quick.