01-22-2010, 04:42 PM
WRXtranceformed Wrote:.RJ Wrote:0w20 probably doesnt change anything, unless you do a lot of driving in really cold temps.I don't really. According to Amsoil, this 20 weight has slightly better wear characteristics and produces better gas mileage. Time will tell about the second part.
I thought you meant 5w20 vs. 0w20,