by matt dunn » Wed Apr 11, 2007 12:02 am
Just went thru all this last week.
There are 3 or 4 types of Castrol Edge.
2 cars, 2 symptoms.
Car 1 was severly overheating, up to 120 on the gauge,
but oil temps were only in the 70's.
The car had always run the oil temp and water temps within a few degree's, and on a normal car after a decent run the oil should be hotter then the water.
Car 2 shat a new Turbo in testing and was determined to be excessive heat on the shaft that caused it. ( been thru that before too)
Was the first time it was run on edge too.
Final result, something we found a few years back,
synthetic oils do not absorb heat from things.
Egde is synthetic and therfore doesn't absorb heat.
Awesome advantage in a non turbo car,
but really bad for turbo's
and makes your oil cooler just there for the ride.
Car 1 changed back to magnatec and the oil temp's once again matched the water temps and a bit more, and helped to solve the heating problem.
( cant say for sure that is was the only thing that helped though)
car 2 also went back to non-synthetic.
Ask a turbo expert about turbo's and synthetic oils.
they do go together.
On a non-turbo car though Edge may just give you the edge.