The Subaru Legacy has a gas tank capacity anywhere from 15.9 to 19.2 gallons depending on the model.
How big is the gas tank on a Subaru Legacy?
The Subaru Legacy has been on the road since 1990, and that long of a…well, legacy, is bound to come with variation—and that includes its gas tank size. While the current model of the Legacy holds 19.2 gallons, that hasn’t always been the case. Here’s the gas tank size for each model year of the Legacy.
How to check your Subaru Legacy’s gas tank size
Uncertain about your Legacy’s actual fuel capacity? Here are some easy ways to find out the size for yourself.
Don’t worry, you don’t need any fancy formulas from high school for this one. Just grab a calculator and a tape measure, then multiply the width, length, and height of your tank in inches. Divide this number by 231 (the number of cubic inches in a gallon) to figure out your tank’s gas capacity in gallons.
Check your owner’s manual
If you’re fresh out of tape measures, you can always grab your Legacy owner’s manual to check out your gas tank capacity. Turn to the table of contents or index and search for “fuel tank capacity” or something similar.
Drive till empty, then fill it up
If you aren’t concerned about having the precise number, just drive your Legacy until your fuel gauge hits “E,” then head to the gas station to fill it back up. Keep an eye on the pump to get a general idea of your fuel capacity. Be sure you aren’t driving too far with an empty tank, though!
How to save on fuel costs in a Subaru Legacy
There are easier ways to cut back on your fuel costs without buying a whole new car, though. Here are the simplest tricks to reduce your fuel consumption:
How to optimize your Legacy’s insurance coverage