Do old Jaaaaags have dual fuel tanks?

"Textured Soy Protein" (texturedsoyprotein) 10/19/2016 at 14:19 • Filed to: Interesting cars at work

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I found this oh so classy British Racing Green XJ6 parked next to me when I went out to lunch today. After I took this picture I realized it has two fuel filler caps. What gives? Are there two tanks? Is one just for decoration leading to many accidental pull-ups at the wrong side of the gas pump?

Then I got in my car and noticed a bird shat a giant purple turd on my windshield.

sm70- why not Duesenberg? > Textured Soy Protein 10/19/2016 at 14:22

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Yes they do.

Benjamin Rolland > Textured Soy Protein 10/19/2016 at 14:22

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Dual tanks.

crowmolly > Textured Soy Protein 10/19/2016 at 14:23

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One is for fuel, the other is for Lucas smoke fluid.

Seriously though, they are twin 11 gallon tanks. There should be a switch to select which tank you want.

You never know when you’ll need the extra capacity to flee the horde

LongbowMkII > Textured Soy Protein 10/19/2016 at 14:26

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One was for fine scotch until the nanny state intervened. Now they’re both used for gasoline.

bob and john > Textured Soy Protein 10/19/2016 at 14:27

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saddle tanks.

Nibby > Textured Soy Protein 10/19/2016 at 14:29

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Yeah they had two tanks. Also 70s-90s F150/250/350s had dual tanks.

Nisman > crowmolly 10/19/2016 at 14:33

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That’s incredible. Perfect for a cannonball. Or not actually.

Textured Soy Protein > LongbowMkII 10/19/2016 at 14:33

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If only the engineers who designed the scotch tank would’ve collaborated with the folks at GM who came up with the magnetic glovebox minibar in the 1957 Cadillac Eldorado.

LongbowMkII > Textured Soy Protein 10/19/2016 at 14:36

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Indubitably.

ITA97, now with more Jag @ opposite-lock.com > Nibby 10/19/2016 at 14:38

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I owned at 91 F150 and a 92 F350 that had dual tanks. I always liked having two tanks for some reason.

Nibby > ITA97, now with more Jag @ opposite-lock.com 10/19/2016 at 14:45

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Sweet! Those trucks are badass. Did you ever have any issues with dual tanks? I’ve read they can be problematic

jimz > Textured Soy Protein 10/19/2016 at 14:46

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ah, remember the days when these were what counted as “cupholders?”

aberson Bresident of the FullyAssed Committe > Textured Soy Protein 10/19/2016 at 14:48

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ya

they’re symmetrical inside and out

ITA97, now with more Jag @ opposite-lock.com > Nibby 10/19/2016 at 14:59

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I never had any real issues, but I also only owned each truck for about a year. I did hear about folks having issues. The only special thing I remember was that the fuel gauge was optimistic on one of the tanks on the 91 F150, so I always made sure I used that tank first.

Rykilla303 > Nibby 10/19/2016 at 15:03

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my ‘77 k15 has dual tanks. The switching mechanism has to be really well grounded, so rust has to be kept at bay in that spot. Otherwise, pretty fool proof.

gawdzillla > Textured Soy Protein 10/19/2016 at 15:38

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been wanted to get one of these and put an LS1 in it

would have done it already if i was single ...

ranwhenparked > Textured Soy Protein 10/19/2016 at 21:09

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Yes. These things were built for long distance cruising.

Autofixation > Nibby 10/19/2016 at 23:32

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Double the fuel pumps and screens to go bad.

Nauraushaun > Textured Soy Protein 10/20/2016 at 07:25

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He mentions that the XJS has 2 tanks in the Harrys Garage vid for the car