Gus
Member
2008 XLR manual calls for both of the above brands. Any thoughts about either as I think there has been great improvements in both categories since 2008. I am replacing a water pump and I know Dexcool helps lubricate the seals in the pump but I have also heard from one mechanic that it also hardens in your radiator ( I guess depending on the amount of driving you do). Any other experiences would be enlightening. Thanks