C-3 gas tanks

[Lyndon S.]

Anyone here with a C3 75 or newer with the bladder in the tank. What is the life of a tank like that with the rubber in it with this new gas with a percentage of alcohol in it now. Will it eat the rubber up using this gas? I know GM did not design it to last forever, but we sure wish they could. Can you get new tanks with the bladders in them?
______
Kelly

[Steven B.]

Re: C-3 gas tanks

My '77 and '78 still have their original bladders in and they seem to be OK. I pulled my '77 tank in '97 and the bladder showed no signs of deterioration. I have not looked since then.

[Joe L.]

Re: C-3 gas tanks

Anyone here with a C3 75 or newer with the bladder in the tank. What is the life of a tank like that with the rubber in it with this new gas with a percentage of alcohol in it now. Will it eat the rubber up using this gas? I know GM did not design it to last forever, but we sure wish they could. Can you get new tanks with the bladders in them?
______
Kelly

Kelly-----


A reproduction of the 75-77 TANK is available. However, I don't know of any reproduction of the bladder at this time.

The 78-82 tanks have bladders that are integral with the tank and not a separate piece. It seems to me that I saw that someone is now making a reproduction of the 78-82 tank. However, I don't know if it has the integral bladder, or not.

By the way, the 84-96 fuel tank, GM #14048936, was also a tank with an integral bladder. This tank has now been discontinued. However, when it went out of the book, it carried a GM list price of almost $2,000. I was fortunate. I bought a NEW GM example on eBay several years ago for a spare for about $250.