How would I know if there is coolant in my oil?

[adephue]

I'm hoping that I am just paranoid, but I checked my oil level today and used a white napkin to clean the dipstick and it looked like it had a greenish tint to it. I just installed a bypass oil filter so I am 'hoping' that is is just cleaner than I am used to seeing.

Any way to know for sure?

I have also noticed that my coolant level never goes above the cold fill line in the reservoir... adding to my paranoia that there are massive cavities in my cylinders that belch coolant into my oil with every stroke.

[cdnsarguy]

When your engine is cold open the rad cap the liquid should be to the inner rim on the rad. If it is that's good if it is not then check your hose from the rad to the overflow reservoir make sure it is free flowing and not plugged up, they will get plugged if placed right to the bottom in the res with crud in it. Always wash out the res when doing a coolant change.

The only way to tell if coolant is in the oil is to drain it, first thing out will be water. Check for a diesel fuel smell and thinner than normal oil viscosity......possibly diesel fuel.

When did you check the oil.....always check the oil HOT after suitable drain down. The oil will expand a qt normally so run the engine at or slightly above the add mark cold, if you must check it when cold.