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E85 Now Available At The Pump Gold Coast

GT33R

By GT33R,
in Engines & Forced Induction

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scotty nm35 Grand Master

scotty nm35

Posted
Posted

Caltex price theirs at 20c less than unleaded, the price will fluctuate daily. This is a national pricing structure apparently, the tax has also risen on ethanol just recently I think.

They state 70-85% ethanol, no mention of octane rating. Its higher than I need... :D

FineLine Grand Master

FineLine

Posted
Posted

We've had it here in the switch for a few weeks now.

Octane rating is 105. The amount of ethanol in the blend will change from summer to winter but the ron rating according to them will not alter.

GTScotT Grand Master

GTScotT

Posted
Posted
They state 70-85% ethanol, no mention of octane rating. Its higher than I need... :D

Great, so you dynotune your car on an 80ish % batch then refil the next week on a 70ish % batch and blow your motor.

Got to love garbage.

The amount of ethqanol in the blend will change from summer to winter but the ron rating according to them will not alter.

This I highly doubt, are your sure?

FineLine Grand Master

FineLine

Posted
Posted
Great, so you dynotune your car on an 80ish % batch then refil the next week on a 70ish % batch and blow your motor.

Got to love garbage.

This I highly doubt, are your sure?

Dude i am telling you what they told me. Ethanol isnt the only way to up a ron rating. its been happenning for a long time without it.

Trozzle Grand Master

Trozzle

Posted
Posted
Great, so you dynotune your car on an 80ish % batch then refil the next week on a 70ish % batch and blow your motor.

Tested by another member not to be the case. Running E70 on an E85 map will cause it to run rich enough to negate the "drop in ron". Running E85 on E70 map shouldn't cause detonation unless it was a REALLY hot day.

Just get a wideband and keep an eye on it when you fill up.

scotty nm35 Grand Master

scotty nm35

Posted
Posted
Great, so you dynotune your car on an 80ish % batch then refil the next week on a 70ish % batch and blow your motor.

Explain to me how a richer blend is going to "blow up" your motor?

GTScotT Grand Master

GTScotT

Posted
Posted
Explain to me how a richer blend is going to "blow up" your motor?

All fuels have a rich max and a lean max figure to which they work best at, generally anything between the two will be OK. Anything above or below will result in potential detonation or poor combustion conditions.

Richer does not mean safer in all respects, it is generally accepted that richer is safer due to regular 98 properties. We are talking about lamens terms now and this should not be acceptable in something we put this level of money and developement into.

Fuel blends have always been seasonable with many companies, yet actual mixture percentages advertised at 15% variance is shocking.

Hope I didnt break your heart mate.

scotty nm35 Grand Master

scotty nm35

Posted
Posted
All fuels have a rich max and a lean max figure to which they work best at, generally anything between the two will be OK. Anything above or below will result in potential detonation or poor combustion conditions.

Richer does not mean safer in all respects, it is generally accepted that richer is safer due to regular 98 properties. We are talking about lamens terms now and this should not be acceptable in something we put this level of money and developement into.

Fuel blends have always been seasonable with many companies, yet actual mixture percentages advertised at 15% variance is shocking.

Hope I didnt break your heart mate.

No hearts broken here. :D

If you are tuning near the limits of ethanol fuel I will be impressed. I havent heard ping for 8 months since I changed over. The engine protection benefits are huge and worth the drive to fill up, you dont have to push it at all from your 98 map, it will still give you extra power...

As I have already stated, I ran the Caltex e70 on an e85 manildra map and only saw a 1afr richer difference, not enough to do any damage thats for sure. The plugs dont foul with this fuel.

The Caltex I fill at has been selling ethanol for 2 months now and has gone through 2000L, how long do you think before the servo's tank is refilled?

Trozzle Grand Master

Trozzle

Posted
Posted

Plugs will foul. Big deal. If you're running E85 and willing to risk it without a wideband, good for you. The money you saved on not covering the base with the wideband will come in handy when you buy new plugs so often.

Keep in mind, Caltex did NOT intend for people to be running this fuel in anything other than a flex fuel taxi. The flex fuel cars have an ethanol content sensor that tells the ECU how much % ethanol there is, and adjusts fuel and ign maps accordingly. Since we don't run this, we need to adjust ourselves. Get a map made on E70, as well as a map made on E85. Watch the WIDEBAND YOU PURCHASED when you drive off from the station. Watch the AFR's and work out in your head (should be simple) what % you just filled up with. Swap map if need be.

Hell, cover ALL bases and have 3 maps made, E70, E77.5, E85.

N1GTR Grand Master

N1GTR

Posted
Posted
The Caltex I fill at has been selling ethanol for 2 months now and has gone through 2000L, how long do you think before the servo's tank is refilled?

Just ask the attendant how big the tank is

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