My sight glass is permanently gunked up, can't see anything other than blackness and build up on it. I thought it would solve itself after an oil change but it's just the same, at least I'm happy that the correct amount of oil is in there now though. Question is two-fold:
1) Is there a way to physically clean the inside of the glass? I'd rather not have to dump the oil after just servicing it if possible.
2) Are there any recommended oil fill caps that come with a reliable dipstick? Had a brief look online but the ones I saw all seemed to be in the US.
TIA