So it appears weather we like it or not the corn % in our fuel is going up soon. I am just happy I do not have to use that stuff "crap" in my Jeeps or other small engines. Those of you that like it .....well happy trails. But for my hard earned $$$$$'s. I 'm sticking to the real Gas.I like the idea of less starting issues and less pulling ropes to start these small engines I have. If its true that extra moisture in our fuel tanks is no biggie, then I guess my post is a non issue. Thanks for the post and ideas on this subject.
Btw..................Studies have shown.....Ethanol also damages fiberglass fuel tanks. Stainless steel is the best choice for replacement. Mild steel may also work, but the fuel needs to be kept very fresh to prevent rust. Aluminum is not a good choice. Moisture and ethanol will quickly corrode reactive metals.
Accelerator pumps, in the carburetor, are another problem. Rubber pumps will not last long. Leather replacements are available for some vintage vehicles and will give good service.
On older vehicles, it is a wise precaution to add an extra fuel filter, between the fuel pump and the carburetor. This will help trap any debris picked up by the fuel. Remember ethanol is a great cleaner, any rust or debris in the tank may be picked up and transported through the fuel.
This thread is one of those threads, its all over the place. I cant even make sense of the rambling, sorry. All your modern vehicles sold in the USA are designed to handle 10% ethanol. The claims of misfires, etc due to that 10% ethanol is urban legend, or a sign you do business with autozone. I've heard them spew that BS when they couldn't fix a ladies p0303 with their cure all cleaner. The vast majority of fuel has 10% ethanol, and in many states, stations are not required to post whether its 10% or straight gas. With all the vehicles I have serviced in my career, and owned, I have never had a single issue of engine problems due to running 10% ethanol in a fuel injected vehicle.
E85 is a different beast, and those comparing 10% to E85, its apples to oranges. The engines running it use different intake gasket materials typically, stainless steel in the fuel system, different fuel pumps, filters, and more electronics. The PCM must be able to determine alcohol content, then it adjusts timing and fuel delivery accordingly. They must run larger injectors as well to handle the increased fuel charge needed with E85. If you are silly enough to put E85 in a car that shouldn't have it, it can damage the fuel system, but I haven't seen one yet. They will throw P0171, and P0174 lean codes, as the engine will be running lean. It will be literally starving for fuel, and will have low power. I've had to diagnose a few of those in the last 2 years, so I have first hand experience with this. If the car was a flex fuel, then there wont be a problem, it will just get less fuel mileage.
Now those who want to argue with me, you are entitled to your opinion, but that is all it is, an opinion. Feel free to come apply for a job with me, and you can try and prove your opinion.
OK, streetglideok, you bring up something very interesting...
I replaced my 2003 KJ's engine with one from an '07 Dakota and had numerous vacuum lines that needed replaced. Until I replaced the bad ones I was getting a consistent P0171 code. Now that same code will show up intermittently - shows up then goes away.
Might it be showing up due to fuel that contains more than 10% ethanol? I've not run straight gas through it yet (really hard to find 100% gas around here) but you've got me thinking...
Jeep runs fine, no stumbling, misfires or other codes. I value your opinion on this one.
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2003 Renegade, Black
- 3.7L, 42RLE, 4.10's, 4X Guard Trans skid, Factory Engine, T-case, Tank skids, Modded BoulderBars sliders, OME 927/948, Bilsteins, JBA A-Arms & 1/4" top plate, 1 extra rear iso/side, Moabs with Firestone Destination AT's 255/70-16
There are alot of places now selling E15,soon all gas stations will be selling E15.The mixing of ethanol is done when they fill the tanker trucks and is not constant so you can have E18 one day or E8 the next.
'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case