Just looking through this Pep Boys ad, and I am wondering if it would be worth it ($22.99 for 5qt jug on sale) to start using Synthetic in my 2003 Corolla? I never used it before! Whats the latest on this oil? Would it be beneficial to the car, environment, etc to start using it.
I think the 03 manual actual does not recommend it although I could be wrong. What would be the interval time in changing this oil?
Thanks for any input!