![16839295410622259958830689914873.jpg 16839295410622259958830689914873.jpg](https://www.tahoeyukonforum.com/data/attachments/393/393480-3deed5a7d4b685ef8d022ea76cb962a3.jpg)
Hi how are ya's
I just did a run over here to the family beach house last night.
About 60 miles. Truck ran sweet!
They have dropped the speed limit on this bit of open road to 50mph and 35mph once you reach the hill country/summit road.
So that being said i was doing about 1500 rpm on the flat and peaked about 2500-3000 a couple times climbing steep grades
A couple of big climbs.
I checked my water return before leaving as i usually do.
Inside it is usually nice green anti freeze.
When i lifted the cap i noticed a build up of browny geasey deposits on the inside walls of the container and a loss of a small amount of coolant.
![16839301755081162473142551260439.jpg 16839301755081162473142551260439.jpg](https://www.tahoeyukonforum.com/data/attachments/393/393486-eac0208cd674c087e45bfa061b01e966.jpg)
So i popped the cap on the rad and it was clean,no debris and clear. Inside of cap clean too.
![16839303619918760559733671448476.jpg 16839303619918760559733671448476.jpg](https://www.tahoeyukonforum.com/data/attachments/393/393487-1f7648c0fd9c2e94efd9a8024d33b34d.jpg)
Just popped cap for a look post drive and there is this deposit on the inside.
My thoughts are:Am i lifting a head gasket? Or is the inlet manifold leaking again?
Temp was good!
![16839305669672298472565173741688.jpg 16839305669672298472565173741688.jpg](https://www.tahoeyukonforum.com/data/attachments/393/393488-f6658dd196a86927b9df78b0a39a1136.jpg)
No residue in the oil cap,smells of yummy engine!
![16839306393467953763023269265508.jpg 16839306393467953763023269265508.jpg](https://www.tahoeyukonforum.com/data/attachments/393/393489-f7c4b8152fbb02054c19cf2c6c96e97a.jpg)
Engine oil is a good color. Just about time for a change. Am doing every 5000-7000 miles.
What do you think of this crud?
Time to drain and change coolant or maybe something more serious?
Am keen to hear what you think.
Cheers Tony