I think the book recommends 5W20. I think Castrol GTX is good oil. Why are you going so long before an oil change? I have mine done around 3500 miles. Oil weight probably isn't all that critical in SoCal since our weather is so nice.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Acura World
A forum community dedicated to Honda Acura owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models including the Integra, RSX, RDX, and MDX