Pump E30

[buddy712]

Has anyone ever used E30 from the pump. There is a place near me that has it and wondering if it's worth a try

 

[Terry@BMS]

It's 70% 87 octane, so not ideal. Similar to 91 octane probably.

 

[buddy712]

It's 70% 87 octane, so not ideal. Similar to 91 octane probably.

Got it, thanks for the information. Not at all worth it with 93 available everywhere around here

 

[AdrianG]

I like how ridiculously wide that range is on the high ethanol fuel.

 

[buddy712]

This place has the cheapest regular in the area. Every where else is $5.60+

 

[Stiletto]

Get that 51-83% and send it!!!

 

[rpoffen]

Your best bet is to get the highest octane pump gas you can that isn't over 10% ethanol, then mix E85 to get E30. To do this accurately you will need to test the final result. One option is a Fuel-it flex fuel kit.
Should bne able to run Map 3 easily, maybe Map 4 if you start with high enough octane (93) pump gas.

 

[wrk2hrd]

Your best bet is to get the highest octane pump gas you can that isn't over 10% ethanol, then mix E85 to get E30. To do this accurately you will need to test the final result. One option is a Fuel-it flex fuel kit.
Should bne able to run Map 3 easily, maybe Map 4 if you start with high enough octane (93) pump gas.

Out of Morbid curiosity, wouldn't you get the same octane # running a full tank of E30 vs 91/93 octane + *E85 to get E30? This is an honest question, and not intended to be trolly.

The reason I ask is that I have an e30 pump at the end of my block (and I have the fuel-it analyzer) and was fully intending to put a full tank of e30 to see what % of E comes across my fuel-it sensor and run a pass/log and compare it to my base 91 (highest I get locally) octane pass vs e85 mix pass (when I put in 5 gal of e85 and 10 gal of 91 oct (non-E), I got E17)).

 

[rpoffen]

Out of Morbid curiosity, wouldn't you get the same octane # running a full tank of E30 vs 91/93 octane + *E85 to get E30? This is an honest question, and not intended to be trolly.

The reason I ask is that I have an e30 pump at the end of my block (and I have the fuel-it analyzer) and was fully intending to put a full tank of e30 to see what % of E comes across my fuel-it sensor and run a pass/log and compare it to my base 91 (highest I get locally) octane pass vs e85 mix pass (when I put in 5 gal of e85 and 10 gal of 91 oct (non-E), I got E17)).

What’s important is the final octane rating.
You don’t know what the base gas is with pre-mix E30 unless it says on the pump. Having E30 using 87 octane gas as the base is not going to be the same final octane rating as if you started with 91 gas.

If you mixed 10 gal gas (assuming no E to start with), and 5 of “E85” and you got E17 as a result (assuming the Fuel-it is accurate), then your “E85” was probably closer to E50. There is no set standard and probably varies a lot. That’s why testing is so important.

 

[wrk2hrd]

What’s important is the final octane rating.
You don’t know what the base gas is with pre-mix E30 unless it says on the pump. Having E30 using 87 octane gas as the base is not going to be the same final octane rating as if you started with 91 gas.

If you mixed 10 gal gas (assuming no E to start with), and 5 of “E85” and you got E17 as a result (assuming the Fuel-it is accurate), then your “E85” was probably closer to E50. There is no set standard and probably varies a lot. That’s why testing is so important.

Understood, thanks.

 

[turboAWD]

What’s important is the final octane rating.
You don’t know what the base gas is with pre-mix E30 unless it says on the pump. Having E30 using 87 octane gas as the base is not going to be the same final octane rating as if you started with 91 gas.

If you mixed 10 gal gas (assuming no E to start with), and 5 of “E85” and you got E17 as a result (assuming the Fuel-it is accurate), then your “E85” was probably closer to E50. There is no set standard and probably varies a lot. That’s why testing is so important.

Thankfully, my E85 pump has a sticker saying it's minimum E70, which is a much smaller range.