IMO, Delco Gold (UPF series) or Mobil 1, either for longer OCI or use w/ synthetic oils, save some $$ and go w/ Purolator Pure One or even cheaper the regular Delco filter is of excellent quality.....Use the 1st filter on my 10K mile LT-1 (Iron Head)powered Impala with the Mobil One 0W-40 changed over from 5W-30 M1 just last week...
Mobil One synthetic 75-90 in the rear w/ 4 oz GM lube and valvoline syn blend PS fluid and Tranny fluid (w/ 10oz Lubeguard Red and the deeper Silverado tranny pan)...Dexcool every 4 years, brake fluid next , been "negligant" bout that, flush and refill, looking for DOT4 ATF Blue...