1990-2004 GMC Sonoma Fluid Specs
4.3L V6 Vortec - 6 fluid systems
Brake Fluid
ACDelco DOT 4 Brake Fluid
GM 88862806
Change: every 30,000 mi
Coolant
ACDelco DEX-COOL (Orange)
GM 12346290 / OAT
16 qt / 15.14 L
Change: every 100,000 mi
Engine Oil
ACDelco dexos1 5W-30
GM dexos1 Gen 2 / API SN
7.5 qt / 7.1 L
Change: every 5,000 mi
Power Steering
ACDelco Power Steering Fluid
GM 89021184
1 qt / 0.95 L
Change: every 75,000 mi
Automatic Transmission
ACDelco Dexron VI ATF
GM Dexron VI / 88861001
11.5 qt / 10.88 L
Change: every 60,000 mi
Washer Fluid
Windshield Washer Fluid
All-season or winter-rated
3.5 qt / 3.31 L