Quote:
Originally Posted by Martinjlm
Help me understand why E60 is the sweet spot. Not a challenge, a real question. I’ve been running E85 for a few months. Where I live I can get E85 for $1.99 within a mile of my house. I can get 93 for around $2.60 at Costco or $2.89 everywhere else. Car has more power using E85, tips stay cleaner. Gets better fuel economy using 93, but not enough to eat up the price difference.
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Hey,
Yes I have done all the calculations on the cost running E. I have been running the stuff for several years now. E85 is still cheaper to run due to the cost difference but some don't like to see the mileage loss.
Just to be clear you can't buy "advertised" E60. You have to mix 93 and E85 about 60/40 E85/93(ymmv depending on the pumps actual Ethanol content) to get a 60% E content ratio. Also keep in mind, Just because you buy "advertised" E85 at the pump doesn't mean it's actually E85 either. I see it range from E70-E82 around here at different pumps in the summer and E60-E66 in the Winter.
E60 provides about 95% of the power gains of E85. It also provides a little better fuel mileage, easier cold starts, and takes a bit of strain off the fuel system. The latter only matters if you have enough mods that the fuel system is close to it's limits. So that is why I consider it the sweet spot. The caveat is you have to mix it and on a basic bolt-on car it's easier just to fill up whatever the E pump gives you and drive on down the road. I too just ran it straight when I was NA because it was easier. What I said probably pertains more to those who have Forced Induction.