Originally Posted by
Yaji
Hi guys, at United petrol stations they sell E100 which is E10 100 ron (100 octane) ethanol based ULP. I have a MPS6 and have used it 2 or 3 times due to the fact that it is 100 ron and that it is as cheap as or even cheaper then 91 ron ULP saving about 20 odd cents per litre. I am wondering if the MPS6 is compatable with Ethanol based fuels and whether or not it is safe to use in them, there appears to be no info in the owners handbook relating ethanol fuels. once again if they are capable the run Ethanol blend fuels what is the possibility of running them on E85? will they need a retune, larger injectors bigger fuel pump etc that would be usually required or do they have a fuel flex system in their fuel management system?
Don't know where your getting your 100RON from but I've never seen it even close to 20c per litre cheaper.
Normally it's a couple of cents.
As I've said a few times, I've done tests on a few different cars, mazda MX5, mazda 3 SP23, mazda MPS 3 and 6, ford Focus ST, Subaru Liberty B4 to name some.
ALL of them showed the same result, 100RON is a false economy vs 98RON, yes it's initial price was cheaper but cost per km was increased due to worse fuel economy.
2013 Ford Focus ST - Performance Blue, Cobb AP
Gone 2006 3 MPS Sports - True Red, Koni FSD shocks, in dash OEM look Ebay GPS/DVD, Hypertech, RX8 Rims