Can a 1991 Jeep Limited run E-85 fuel?

Answer 1

you can contact your local dealer and the will tell you or if you have a maintnace book ther will be a 1 800 number in it. ---- Most any gasoline power vehicle can use E-85 but it comes with some major costs. Experimental: E85 has a considerably higher octane rating than gasoline ? about 110 ? a difference significant enough that it does not burn as efficiently in traditionally-manufactured internal-combustion engines. Use of E85 in non-FFV vehicles is generally experimental, with some users recommending light blends as low as 20%, while others have successfully run 100% E85. The main attraction of burning E85, of course, is the lower price per gallon at the pump of E85 versus gasoline. Other advantages include the common benefits of renewable energy sources, such as less environmental impact and less reliance on foreign energy. Modern cars (i.e., most cars built after 1988) have fuel-injection engines with oxygen sensors that will attempt to adjust the air-fuel mixture for the extra oxygenation of E85, with variable effects on performance. All such cars can burn small amounts of E85 with no ill effects. Operating fuel-injected non-FFVs on more than 50% E85 will generally cause the check engine light (CEL) to illuminate, indicating that the ECU can no longer maintain closed-loop control of the internal combustion process due to the presence of more oxygen in E85 than in gasoline. Once the CEL illuminates, adding more E85 to the fuel tank becomes rather inefficient. For example, running 90% E85 in a non-FFV will reduce fuel economy by 33% or more relative to what would be achieved running 100% gasoline. (This example is illustrated above in the previous section - the 1998 Chevy S10 pickup experiment.) Even more importantly, continuing to operate the non-FFV with the check engine light (CEL) illuminated may also cause damage to the catalytic converter as well as to the engine pistons if allowed to persist. To run a non-FFV with amounts of E85 high enough to cause the CEL to illuminate risks severe damage to the vehicle, that may outweigh any economic benefit of E85. There is one other problem. If you are doing this alternative fuel change in the name of ecology or conservation do some homework. Homework from a site that is not about ecology or conservation or tree hugging. What I am saying is check the agenda of the author. It takes more energy to distill ethanol than it does to create a gallon of gas. There is no ecological benefit. The amount of coal burned in production adds more pollution than a gallon of gas being burned. Y-THINK-Y
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THIS REBUTTAL TO THE ABOVE PARAGRAPH IS FROM NATIONAL GEOGRAPHIC - Basically - ethanol is ecologically sensible!!
Boosting Performance At least two previous ethanol studies concluded that the production of ethanol required more energy, including petroleum energy, than the energy stored in the ethanol. But Farrell and his colleagues found that those previous studies were flawed. They used outdated information on production methods and failed to account for the many energy benefits of ethanol byproducts, including things like animal feed. By correcting for those factors, the scientists found that corn ethanol actually reduces petroleum use by about 95 percent per gallon of fuel, though it only reduces greenhouse gas emissions by about 13 percent. "These claims that ethanol is no good, period, do not stand up," Farrell said.

--armypost