Originally Posted by HyperMiler
I am looking to use synthetic oil...better on mpg. Should I stick to 5w20 or will 0w20 be ok? I heard it should be fine using the lighter weight oil because it's synthetic.
RDNK 4RE, how long do you go between oil changes?
Conventional is good for 4-5k, pennzoil platinum/amsoil xl good for 7-8k and amsoil ASM 0w-20 I am running now. I need a few more miles before I pull a sample and test it, I'm waiting for 10k miles to pull the 1st sample. I have several UOA's on bob already I don't know if I posted the Pennzoil platinum. My bob I.D. is "taterandnoodles"
2006 Kia Rio Pennzoil 5W-20 5175 miles - Bob Is The Oil Guy
Use either 5 or 0 that only applies to cold pumping performance in the 0 -10 -20F range is where the difference between the 2 really appears. I ran several conventionals that are posted on bob now I am using amsoil for longer drains. PP had the same wear with more miles and more reserve TBN. TBN was shot on all of the dino's in my Rio at 4-5k. My car is now all amsoil I am using the atf in the PS and trans.