Syncro gas tank capacity

[TopBud]

I am wondering what the capacity is in a syncro gas tank. I put in 18.75 gallons yesterday, I thought the capacity was 18 gallons.
Thanks
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86 bostig SYNCRO
66 convertible Karmann Ghia

[syncromike]

[TopBud]

I thought it was 18 gallon capacity also. I was waiting for it to run out of gas, I was driving locally and had 3 gallons of extra fuel. My guage is kind of not working properly, so I was trying to test it out before I fix it. Thanks
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86 bostig SYNCRO
66 convertible Karmann Ghia

[zippyslug31]

I always understood it to be 18.5 gallons.
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previous:
'80 westy
current:
'90 syncro westy 2.5L subi, triple knob, 16" wheels.
'84 sunroof van, 2.1L motor.

[cvbill]

The back cover of the Bentley says the Syncro tank cap. is 18.5 US gal.

[insyncro]

I do not recommending over filling a Syncro gas tank unless you have resealed it.

You can get more than 18.5 gallons into it IF.................
you do not tighten up the tank straps all the way when replacing them.
This will allow the tank to sit a tiny bit lower and will swell as it is filled.
The rollover valves must be working properly as venting is needed.

I am not going to make any claims of many more gallons, but will admit I can get more than is printed in manuals.

[TopBud]

I have replaced everything except for the tank straps, I have redone the fuel sender and all of the fuel lines. The fuel sender hasn't been registering all the way full when I fill up, so I was wanting to test it once I ranout of fuel. I guess I am goiing to be troubleshooting the fuel sender. At least I know where to look now. Thanks all
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86 bostig SYNCRO
66 convertible Karmann Ghia

[SyncroGhia]

The book states 70 litres but I've managed to get at least 75 litres in Limey at several different places and over the last few years.

This is with a petrol tank, not the diesel tank.

There is supposed to be a difference between the two tanks as well.

MG
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T3 Syncro 16 S6 Westfalia Limey SOLD
T3 Syncro 6x6 SOLD
T3 RS6 Bluestar
T3 Tristar Syncro 16 SOLD
T3 Tristar Syncro RHD SOLD

[buspor63]

I can usually only get $20 in mine
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Imagine that, theres not an "h" in either Westfalia or Syncro?

[raoul mitgong]

Just another data point.
Had to rock my 86 tintop syncro for 2 miles to make it to a gas station today. Pump clicked off at 17.99 gallons. Did not try to squeeze in any more.
-d

[zeohsix]

Peter at Van Cafe told me there is a South African Syncro tank with higher capacity, perhaps a different front mount used in their production allowing more capacity.