I just use a pre-marked test tube to check for Ethanol content.

http://www.quickfueltechnology.com/s...test-tube.html

 

That's bad ***...I'm buying one right now thanks.

It's kinda a pain in the *** but itll do until I have the cash to convert the car to flex fuel.

 

Something you can always keep in mind is Map switching. Go to 93 during that time with the flip of a switch.

 

http://www.summitracing.com/parts/QFT-36-E85/

$4 Shipping here as apposed to $7.

Yeah I have a map for E85 and 91, but that doesn't mean anything if you dont know when they switched to E70. This way you can test and and be like, Ok going to my Pump gas map.

 

Water and gas shaker tube is cheap but not too accurate to begin with. It gives a good bench mark though.
This gets more complicated. Usually you have some 92 Octane left in the tank, nobody drives to E85 station on empty or fills up E85 every time. As a result final E% in the tank varies depends how much 92 was mixed into E85 and that assuming E85 was at the pump in first place. The only way to know is to have a flex fuel sensor in fuel return line. Or you can siphon some from the tank. A hose and a mint goes a long way.

 

nice vid man! I say just go e85.

 

I actually try to run nothing but E85 as I have 2 stations right next to my house. If I have to go to 91oct when I switch back to E85 I drain the tank completely, fill the car with E85 using my 5gal gas jug then drive around the corner to the E85 station

I'm really **** with it.

 

Definally a must have for me.

 

There is a schedule that shows which parts of the US switch their blends (can't find it). Could also ask the station operators to see if they actually switch blends as some don't.

I would just get tuned on e70 and forget about it. Most tuners don't tune to the edge with e85 anyways because they know about variances in blend.

-Will