Gas tank caps: They play an important part in ... of fuel and its vehicles from black-gas-capped vehicles that only run on typical unleaded gasolines. What you don't want to do is accidentally ...

It also typically costs less per gallon than regular unleaded ... a yellow fuel cap to match the yellow rubber sheathes on E85 pumps (like diesel cars and trucks have green gas caps).

meaning pure ethanol achieves lower gas mileage than pure gasoline. However, with only a 5% difference in ethanol content, the disparity between unleaded 88 and regular unleaded is negligible. " ...

Because E85 has lower energy density than pure gasoline, fuel mileage suffers. This may or may not be offset by the cost savings of E85 compared with standard unleaded ... gas cap or ring around ...

This needs to be unleaded gasoline that is less than 10% ethanol. You should not use E15 or E85 fuel as not only will it damage ... gallon of gasoline. Put the cap on the gas can and turn it ...