Pros and cons of poly fuel tank

[turtle jim]

My dirty fuel tank is making me crazy.Wag has been down almost 3 weeks now,and I can't get my tank or my 2 spare tanks clean enough to think of as realiable.Can't locate a used tank.So I am CONSIDERING a poly tank from bjsoffroad.
Excepting the obivious,what are the pros and cons ?

[andy d]

how clean do you think you need it? wash out the best looking one with hot water and a hand full of rocks. shake it well. pour off the water. repeat a few times. replace the pickup sock. put everything back together dump a few cans of dry gas fill it with gas. in a week or so replace the fuel filter. i had a gmc that had sat for about 5 yrs. the tank on that thing was so bad that when it ran low. it would start sucking up scale and plug the pick up. after a few times of this happening, i kept a valve stem that iwould place over the fuel line just before the pump and blow back into the tank. i took scale by the handful out of that tank. surely your best tank isnt that bad. btw the poly tanks in the wags are great i ve never had a problem with them. ill bet they are just as puncture proof as the steel ones

[sandmanb]

one more option would be to take your best tank to a good radiator shop. they can clean it and line it for you for alot less than a new poly talk.

[Joe J-Truck]

I had a poly tank in my J10 and it cracked when I busted my rear u-joint and the driveshaft smacked the tank. I also heard that if you ever do a fuel injection setup, the poly tank can't take the extra pressure produced by the high pressure pump necessary for fuel injection.

[Rockwagon]

You don't have pressurize the tank for fuel injection. Most pumps mount externaly you just have to run a high pressure hose where ever you are not using the hard line. Most newer cars all have polly tanks. I have no tank probs with mine.