8 months later...
Traded the Concorde in for a 2005 Chevy Uplander, just put Mobil 1 5W30 in it today for the winter.
Put Valvoline Maxlife Synthetic 5W30 in the Blazer today also for the winter.
Will be putting Mobil 1 5W30 in my Mom's 98 Buick century probably next weekend.
Traded the Concorde in for a 2005 Chevy Uplander, just put Mobil 1 5W30 in it today for the winter.
Put Valvoline Maxlife Synthetic 5W30 in the Blazer today also for the winter.
Will be putting Mobil 1 5W30 in my Mom's 98 Buick century probably next weekend.