OK, with AC Delco going E-Core I have decided to go with one of the following for my Silverado.
Mobil 1 M1-113
Purolator Synthetic PLS12222
Fram Ultra XG10060
The Fram is the least expensive. Any other suggestions.
Mobil 1 M1-113
Purolator Synthetic PLS12222
Fram Ultra XG10060
The Fram is the least expensive. Any other suggestions.