1989 F150 Extended Cab Fuel Tank Capacity
I am the original owner of a 1989 Ford XLT Lariat F150 extended cab (it does
not have the long bed). It has two fuel tanks. How many gallons of fuel do the
tanks hold? I want to begin adding Marvel Mystery Oil to the fuel tank but am
unsure how much to add.
I found the old brochure on my truck, but it does not give me a great deal of
information. This is what I found, but I am unsure of the accuracy for my
Fuel Tank Capacity
Reg Cab: SWB Std. 18.2; LWB Std 19.
Super Cab: SWB Std. 34.7; LWB Std 37.2
I am unsure what SWB Std. and LWB Std. mean. Something about the bed
lenght from front axle to rear axle.. 10 oz for 18 gallons...
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