1995 Ford factory service manual shows all 1995 f250 and f350 diesel models to be 19 gal front and 18.2 gal rear refill capacity <font color="red">EXCEPT</font> the regular cab F350 4x4 - front tank is listed at 22 gal on that one, rear is still 18.2 gal.
Your 97 should be similar, I think.
Dave / Believer45
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'95 F250 ext cab long bed, PSD, 5 speed, 2 wheel drive, 3.55 gears, 286,000 miles, Edge Evolution CTS (LINK TO MY REVIEW), LUK clutch, homemade REAR BUMPER, open element AIR FILTER, 36" ARE contractor cap. With tools, full of fuel and me on board (300 lbs) steer 3620, drive 3860 total 7480.
Bigger then you think. When the gage hits the RED empty mark, you still have around 4 gals left. The needle will go over a full needles width past the red mark before you run out.
Counting the filler neck that I can fill up now, I have put over 20 gals in each tank at one time or another.
I just ran my truck untill it ran OUT of fuel in one tank then switched to the other one so I would KNOW how low I could go. It doesn't hurt the truck but I don't do it anymore now that I know. It spit & spurtered a bit but kept running and cleared up in a few seconds.
book says 18 & 19 like has already been said.
97 F250 SC LB 4X4 PSD TDE0, E4OD,3.55's, 285/70/16"s ,Modified fuel tank vents, 375+k headed for 500k
My '96 is a reg. cab long box, and I've put as much as 24.2 gal. in the big front tank, & 20.2 gal. in the little rear tank.... both the original factory tank and the OEM replacement tank I installed about 3 yrs ago when the old one rusted out. Been many times I've put in 40-42 gal. at a fillup. That 800 mile range sure is nice.... [img]/ubbthreads/images/graemlins/smokin.gif[/img]
'96 F-250 Reg. Cab 4X4 5-sp POWERSTROKE
298,500 mi & NO Problems, LUK Clutch
I went back and did a search of this same topic/question which I have replied to several times and one of the posts I made is here.
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May '02 F-350 7.3L SC Lariat 4x4 Auto SRW LWB, Currently 3/2015 - 316.4K+ miles
June '97 F-350 7.3L Reg Cab XLT 4x4 Auto SRW, OEM Radio w/CD, Currently 3/2015 - 202.5K+ miles