1999 Acura Integra at 135k I have been using Advanced full synthetic 5w30 for a long while - change every 5k - my annual mileage might be around 7k. I noticed that the oil is getting darker towards oil change at 5k - this time it was worse when I changed at 4.7k (this time more came from freeway d…

Oil getting darker might be a sign of uncleaned air getting to the engine. Check integrity of the filter, its gaskets, and the ducting to the intake manifold.

Mobil 1 5W30: Annual Protection Vs Extended Performance Vs Advanced full synthetic

Maintenance/Repairs

Tester February 10, 2019, 9:25pm 3

What does the manufacturer recommend? That’s the oil to use.

Tester

High NO at 15mph - everything else is normal on Acura