My 1997 Tahoe has 100,000 miles on it now. I'm thinking of switching to GC after the Auto RX and rince is done. The engine was raised on Castrol GTX. If I made the switch to GC what are the chances of it leaking becaues of the new synthetic being used. Wold this be smart or would it be better to stick with the GTX? Also if I stick to dino should I start to use Halvoline, I have sence learned it is probibly better then the GTX. What are your thoughts on this?
What are my chances......
- Thread starter Chris B.
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If your run 1 or 2 treatments of Rx with a conventional oil, the switch over should be fine. Might be fine without it too. Depends on how well the engine was taken care of. If the oil was changed every 3k-5k, you should be fine. Seals should be in good shape.
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