I am using synthetic oil in my '08' mazda 6i, will I see any bump in horse

[GR8_just_GR9]

power and increased gas mileage? I am using pennzoil platinum 5w/30 weight.

 

[satan]

It won't do anything diff with power or mpg

 

[merlin]

i dont think there will be just keep tyre pressures at correct pressure and dont carry things about in boot that u dont need to get best mpg