Gas Tank capacity

[joetiii]

69 Manual says tank capacity is 16 gallons w/ 1.5 in reserve. The PO had tank replaced due to rust and when my guage is resting on "E", the most I ever can put in is 12.5 gallons.

Are replacement tanks smaller? or is my sending unit miscalibrated?

[joetiii]

subscribe please

[Sigurd]

I'm not an expert on fuel tank sizes, but I do not think there are tanks that takes as little as 12.5 imp gallons. I have, however, experienced fuel gauges that are not accurate. Most likely the tank unit.

Bring some extra fuel and run the tank dry.

[Zithlord]

US gallon and UK gallon is not the same meassurement:

U.S. liquid gallon is 231 in³ (exactly) or 128 U.S. fluid ounce (exactly) or 3.785411784 liters

U.S. dry gallon 4.404 884 L

Imperial (UK) gallon is 160 imperial fluid ounces (exactly), or 4.54609 L (legally). That is approximately 1.201 US gallons.


Is this the problem?

John

[Neunelfer]

Mine's 20+

$55 clams to fill up yesterday.

(SC tank)

[roblav]

All my manuals say 16.4 US Gallons.

[bob tilton]

I recently looked into replacing my gas tank with a later larger tank and read that 74-83 21.2 gallons and 84+ 22.5 gallons. Assume 65-73 is 16 or slightly larger as roblav mentioned.

[karlusmagnus]

R.A.O.P.
(resurrecting an old post), can one just swap tanks? put in a larger tank from a later model? ideally best solution is to get atl or fuelcell make you a vintage cell with bladder. but upgrading fuel tank size, is this also a viable option? for a longhood?

[edmayo]

You can put in the larger tank from a big bumper car, there is slight difference in vent tube diameter and location, and you'll need to go to a space saver spare. Seems like there is also some difference in fuel fittings at bottom, can't remember exactly what though.

[WCB4]

My 71 car was up dated too a late SC fuel tank. Close to 25 Gallons a bit more than 345 miles per tank at 85 mph . Was great running from Northern Michigan to Cincinnati Ohio, Round trip on less than 2 1/2 tanks. There were only two draw backs. Firts was the cost on a top off, second was when running with other Long hoods was the short stopping for fill ups. If I remeber right it was pretty much a drop in and yes I did have to go to a space saver and a Porsche air compressor. The same SC provided all the needed parts for the converssion.