We just bought a 2010 exl 4wd a week ago. I just started going over all the fluid details. Is there anyone that can tell me why it would be bad to run 5-20 oil over 0-20? Owners manual say 0-20, but I have 12 gallons of 5-20 synthetic from my accord.

Also what can be done to increase fuel mileage on them? Just looking to get the best mileage out of it we can. The accord averaged 34mpg on her commute to and from work. I know we can't get that, but would like to get as close as I can.

 

several threads discuss this at bitog

use search box 0w-20

http://www.bobistheoilguy.com/forums...Number=1885898

 

thanks for the info I am going through the site now.