Any reason I should not switch to E85?

Discussion in 'Performance & Fuel' started by Schaub, Mar 8, 2011.

  1. Schaub

    Schaub New Member

    So I'm contemplating switching to e85. Does anyone have a reason not to switch other than the MPG loss?

    Its about .50 less here in IL so, I don't really see a reason not to try it.

    Can I just fill it up with corn juice or should I run most of my tank out first?

    Also, does anyone see a reason why I couldnt run the 93 tune on my Predator if I switched?
    Last edited: Mar 8, 2011
  2. KWG08VMI

    KWG08VMI New Member

    Well if you aren't worried about MPG loss then i don't see why not. But i would run the tank down before filling back up. I really don't about the Tuner question, sorry.
  3. Schaub

    Schaub New Member

    I only drive about 35 miles round trip for work so the mpg hit isnt that bigga deal.
  4. L1n5c0tt

    L1n5c0tt New Member

    i run e85 in my 2007 classic with no problems. the savings at the the pump about .50-.60 cent a gallon in Indiana it add up to the same as gas in the long run and i get better performance out of e85. to you Q about running it out u dont have to my wife uses my truck and put regular gas in it all the time with no problems. don't no about programmer.
  5. jdennis44

    jdennis44 New Member

    not to steal your post Schaub but is it true that e85 should never get over 3 bucks a gallon? if that is the case then i would think switchin over to running e85 would be a great idea seeing how they are predicting gas will be around 5 buck a gallon this summer. yall are lucky up north though..down here where i live in Georgia we dont even have any e85 pumps!
  6. dualdj1

    dualdj1 New Member

    If you truck is a flexfuel vehicle, then you should be able to switch over with no problems. If it's not, you have to make sure you have sufficient injectors and tuning capability to be able to switch to E85. E85 requires more fuel for proper mixture (hence lower mpg), so bigger injectors are needed. On an 09 I'd think you'd be ok, but cannot say for sure.

    If it's flexfuel, you don't need to drain the tank. If it Isn't, you want to drain the tank (at least mostly) before changing your tune.

    You will get better performance with E85, as it allows you to crank up the timing due to a higher octane (generally thought around 94-96 octane). This helps you get some of that mpg back through more power, but does require tuning to adjust the timing.
  7. dsfloyd

    dsfloyd New Member

    your welcome for the cheaper E85 (taxpayer subsidies):no:. But it is what it is, so if you have the flex fuel truck i'd switch over, since I assume you have an E85 station that is conveniently located near you.
  8. Schaub

    Schaub New Member

    at least 5 that I can think of...

    I'm switching over after this tank. I'll let everyone know how it goes.
  9. Diablos website doesn't mention anything about not runnig E85 so I'm sure it would be fine. I'm sure Diablo thought about the flex-fuel trucks when they designed the Preditor for them. Have you checked there forum about this???
  10. ChevyFan

    ChevyFan Administrator Staff Member

    You will see about a 30% drop in MPG when on e85. Snce you're 85% ethanol and 15% gasoline the funny thing is that it takes gasoline to produce ethanol so you will see an increase in the 15% and a slight increase in the 85% ethanol.

    Personally, I think it's a net-wash when it comes to energy savings (that's pretty trick to figure it all out, but until we can get something like switch grass or anything but corn then we won't see the massive boost in energy), but you can feel better knowing that you are only using 15% gasoline when going down the road instead of 90% like everyone else.

    I'm driving a 2011 Tahoe e85 Flex Fuel for my demo right now, I should do a story on that.
  11. murdog94

    murdog94 New Member

    I know we are over .70 less a gallon for E85 up here. but you will need to check your milage and do a little math, since as steve says 30% loss i have seen less with rentals with E85 capability around 10-20% but still a noticable loss.
    And no to the question is it true it cant go over $3 a gallon, it can go much higher, when it was $4 a gallon and higher here in MN it was just about $3.75 a gallon for E85...
  12. dualdj1

    dualdj1 New Member

  13. Schaub

    Schaub New Member

    yeah I saw that a week or two ago, interesting to say the least.
  14. 5Cent

    5Cent New Member

    Schaub, get it switched over yet? Any input?
  15. AzDragonLord

    AzDragonLord New Member

    I wish my e85 costs were below $3!

    You should see an average 15-18 percent drop in MPG due to e85 having less energy than gasoline, but given the fact that it burns clean and is domestically produced, it's a winner in my book! I run e85 almost exclusively for just those reasons...and by doing so I help push the technology along so it gets even better.

    You can see more info at the site listed below, along with forums and other helpful a calculator to figure cost-per-mile for e85 vs gasoline.
    Last edited: Apr 3, 2011
  16. Als09Sierra

    Als09Sierra New Member

    E85 by me is 70 - 85 cents cheaper than gas (mainly due to the high gas tax in NY). I track my mpgs and only see about a 1 mpg drop from daily driving. Most of that is local driving so I don't get great mileage to begin with. The advantage is the throttle response. I immediately notice a difference when I switch back to gas. I believe some programmers have an E85 tune, so check to see if you have one. The octane will vary based on the percent ethanol to gas in each fill, but if your programmer is setup for it, you should notice a difference. I know guys who use it in their race cars. As far as whether you can mix it with gas, if you have a flex fuel vehicle you can switch it at any time with any amount of gas and E85 in the tank. Let us know how you're doing with it. Also, one of the biggest advantages is that E85 is made in the US. The more people who switch means the less amount of foreign oil we are dependent on.
  17. Schaub

    Schaub New Member

    Yeah guys I've been running it. Prolly ran 5 or 6 tanks through. I did the math and I think I'm only saving a penny or two, if that. I get about 11mpg with it, plus or minus a couple depending on conditions. AzDragon thats pretty much why I'm doing it, just to help IL farmers and what not. Only thing I TRULY do not like about running it, the pumps. ALL the e85 pumps around here are stupid slow. It literally takes me 15mins to fuel up. I have to drive to STL next weekend, not sure if I'm gonna put gas in for that or not. What I need to do is get my car running again and drive that damn thing.
  18. 5Cent

    5Cent New Member

    Thanks for the follow up fellas. I'm going to run a few tanks of regular and get a few thousand miles on mine before I fill with the first tank. I know I don't have too, but I just wouldn't feel right not doing that,lol. Luckly there's a co-op just a few miles away and it's currently $0.50 less than regular.
  19. AzDragonLord

    AzDragonLord New Member

    A slow E85 pump could mean a number of things- either a low tank, a blocked filter, crud, or it could be a trace of water found. There are filters made now that slow the speed to a crawl if water is detected.

    Either way- if you ever run into a really, really slow pump anywhere, make sure you tell the station attendant- so they know to check. They might already know, but if they don't it will not get fixed. E85 should pump as quickly as gasoline.
  20. 5Cent

    5Cent New Member

    Good information, thanks for sharing.

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