89 octante is best for the car. you can use 87 octante with gas treatment ( lucas gas treatment) adding this treatment will give you the same performance as the 89 octante without the gas treatiment.
87 octane
Thru the fuel-filler nozzle...
87 octane
it should be in the gas tank..
its a Chevy
choke not working
Probably If fuel injected yes
4.3 5.0 5.7 5.7 diesel 305,350 gas
It is 23 on the sedan and 21 on the wagon
Sedan, 25 gallons - Wagon, 22 gallons
It is important to know the fuel economy of a vehicle while owning it. The 1985 Chevy Caprice has a fuel economy between 14 mpg city and 26 mpg highway.
22 gallons sedan 25 station wagon