Originally posted by Red GSR
The type of oil you use can also affect your mileage. The recommended oil for Integras is 5w30. The reason this was chosen is because it gives us greater mileage. If you were to go to a thicker oil then it would result in a quieter smoother engine, but you lose out on economy. I don't quite remember where I read this but I'm gonna test it out this summer since you're supposed to use thicker oil when it's hot out anyway right?
I just did my oil change yesterday and used 10w 40, the guys recommend i use that over the 5w 30 based on the 120K miles I have.