I have oil in my coolant!

[frankd]

What's your coolant replacement schedule been? I change mine every 2-3 years because I've read that anti-freeze changes and becomes slightly acidic with use. Then gaskets are eaten away. This allegedly is the cause of head gasket and intake manifold gaskets failing on car/truck motors with an aluminum head. When I changed my coolant after rebuilding the water pump this spring, I installed 5 year Prestone, but I haven't decided if I'll leave it in for the full 5 years yet.

 

Frank

[StarFan]

I'm sorry to say that I think you have misunderstood the information about the plugs. I don't think there is anyway that they can cause you to get oil in your coolant. Unfortunately, I think you have a much bigger problem. I'm not even sure that your Royal Star has those plugs, I don't know for sure but all the posts I've seen here about them has been in regards to the Royal Star Venture.

 

Hopefully somebody else will come up with a simpler explanation but my first thought is a bad head gasket.

 

Actually all Royal Stars from 1996 to 2013 have these plugs. There is no way that oil gets in through there to the coolant.

[mbelik]

Yep I found them and drained them

[mbelik]

What's your coolant replacement schedule been? I change mine every 2-3 years because I've read that anti-freeze changes and becomes slightly acidic with use. Then gaskets are eaten away. This allegedly is the cause of head gasket and intake manifold gaskets failing on car/truck motors with an aluminum head. When I changed my coolant after rebuilding the water pump this spring, I installed 5 year Prestone, but I haven't decided if I'll leave it in for the full 5 years yet.

 

Frank

 

I would have to look into this as you would imagine the coolant would be designed not to react with the alloys. I changed the coolant probably once every two years or when I could be bothered.