I replaced my rubber fuel lines
 

Today I replace the rubber fuel lines. The old ones were getting pretty crusty and were about a hot summer or few good bumps from giving out. I loosened the rear line under the cab from the tank to the steel line and it started to leak as soon as I loosened the clamp. I think it was worn where the clamp and home met the bulge on the line. I put the rounded edge clamps on everything and I should be good to go for a while.

Re: I replaced my rubber fuel lines
 

Great work bud - an ounce of prevention…..

Re: I replaced my rubber fuel lines
 

I keep a fire extinguisher in the truck JIC

Re: I replaced my rubber fuel lines
 

My experience is that they ought to be replaced every 4 years. Current fuels seem to cause some fuel lines to harden considerably even within that 4 year window.

Re: I replaced my rubber fuel lines
 

Did you notice the rating on your old and new hoses?

Here's the lowdown on types of fuel hose:

SAE 30R6 and 30R7 Hoses
These hoses were the industry standards for decades. SAE 30R6 and 30R7 hoses were designed for fuel systems rated at 50 PSI or less of working pressure like carburetors and TBI fuel injection. The hoses have a nitrile rubber inner liner reinforced with single-ply braided cord and a neoprene rubber cover. SAE 30R6 and 30R7 hose is not compatible with ethanol and many modern additives designed to boost gasoline octane.

SAE 30R9 Fuel Injection Hose
As the name implies, SAE 30R9 hose is designed for use with EFI systems that use hose clamps and have working pressures of 100 PSI and up. It features a fluoroelastomer inner liner that can handle all types of fuel including oxidized gasoline, diesel, methanol, and ethanol-blend fuels. SAE 30R9 hose also resists fuel permeation so it’s emissions-legal.

Replacing old fuel hose with SAE 30R9 fuel injection hose is the smart play. The small price difference compared to SAE 30R6 or 30R7 nitrile hose is well worth it.