Depends on the year, engine size, and how you drive. Two gallons should be plenty.
35
18 city 23 highway
I have an '89 and I average 20.5 in the summer and 18.5 in the winter.
It receives 16 mpg regular, and 24 mpg highway. average mpg is 19 mpg.
my 1982 caprice classic(5litre 305 ci v8) gets approx 15 miles to the gallon or 6 kilometres to the litre...
5 grand easy
Check out kbb.com
25.6
Roughly 16 mpg city. Roughly 20 mpg highway.
They get about 16 street 18 highway. I got a 92 they are gas guzzlers! But if you use a good fuel injection cleaner every now and again it helps out a lot and you will notice the difference especially if you have high mileage on the motor.
if no leaks or problems, they recommend every 60< thousand miles.
200hp@ 5200rpm 235ft lb of torque 9 miles a gallon