is high mileage oil really worth it...the claims are that high mileage oil makes the seals tighter/better and other stuff i forgot...but jw cuz i'm due for an oil change

 

it makes the engine run smoother. you could either get the high milage oil, or engine restore. they both do the same thing. I used engine restore on my last oil change and the car has been running a lot smoother because of it.

 

what's engine restore

 

use thicker grade oil...it'll give ya more protection... it's ok to go for synthetic, but i'd stick to mineral

 

i use rotella in my accord.... 244,xxx and still kickin it

 

Using the high-mileage oil isn't going to hurt anything, but at only 100k, I doubt it's really necessary...unless the engine is consuming oil or has lost compression, in which the high-mileage oil would provide better protection. Otherwise, it's unecessary. I'd stick with regular 5w30 or 10w30 oil. Switching to a synthetic oil this late in the game might cause premature leaks.

 

Thicker oil means more resistance in the engine, meaning slightly less gas mileage(not much of a reason). No where in the manual(more of a reason) does it say to switch the oil at a certain mileage so I don't. I still use 5w-30 in my 93 civic with 165,*** miles on it. I'll keep using that grade oil.

 

Mobil 1 Synthetic 5w30