Fuel Filter O-Rings for Lines - gm-trucks Apr 10, 2006Rubber takes a "compression set" which will deminish the sealing capabilities. Automotive O-rings are cheap and with your fuel system you would not want a leak. I don't know what GM calls out for the o-ring material with the E85, but it probally is different from the standard Nitrile rubber compound used on NON-E85 vehicles. gm fuel o ring | eBay Find great deals on eBay for gm fuel o ring. Shop with confidence. Skip to main content. eBay Logo: 17 product ratings - FUEL INJECTOR REPAIR KIT O-RINGS FILTERS PINTEL CAPS 2000-2005 GM 3 3 V6. $13. or Best Offer. Fuel Injection Fuel Rail O-Ring Kit ACDelco GM Original Equipment 12482706 See more like this.