Technical The new E10 fuel

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jad007

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Hi all and many thanks for letting into your forums!

What will the differents be with the new E10 fuel on my pre evo rotax senior?

Many thanks

J
 

Billywatts

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Hi all and many thanks for letting into your forums!

What will the differents be with the new E10 fuel on my pre evo rotax senior?

Many thanks

J
Welcome to the forum mate,
It’s always best to use E5 supreme + stuff. I’ve always used shell v-power and Xeramic oil.
 
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Adam

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97 octane+ like @Billywatts says is your best bet! Grice Racing Engines has told me to run on 97+ so anything like BP Ultimate (97 Octane), Shell V Power (99 Octane) is perfect!

Then mixed with any good quality full synth oil at 2% (10L - 200ml oil / 5L 100ml oil / 2.5L 50ml oil / 1L 20ml oil).

I have been told to run Millers which is a castor/synth blend for 1 -2 hours after my rebuild. Then move to fully synthetic stuff. Xeramic, XPS/Rotax, Castrol XR77, Silkolene Pro 2 etc.

Note: Never mix oils. Drain your tank before switching oils.
 
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Billywatts

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97 octane+ like @Billywatts says is your best bet! Grice Racing Engines has told me to run on 97+ so anything like BP Ultimate (97 Octane), Shell V Power (99 Octane) is perfect!

Then mixed with any good quality full synth oil at 2% (10L - 200ml oil / 5L 100ml oil / 2.5L 50ml oil / 1L 20ml oil).

I have been told to run Millers which is a castor/synth blend for 1 -2 hours after my rebuild. Then move to fully synthetic stuff. Xeramic, XPS/Rotax, Castrol XR77, Silkolene Pro 2 etc.

Note: Never mix oils. Drain your tank before switching oils.
Yes that just better explained πŸ˜‚
 
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Adam

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Yes that just better explained πŸ˜‚
Ahh don't be silly! Thanks for getting involved and helping members mate, much appreciated.

Before I got my engine rebuilt I was just using 95. Meeting before last I got a proper rough batch, looked green and smelt like pond water. Went alright though.... :unsure: :ROFLMAO: Must of got the bottom of the tank before they went over to E10 or something. Used 97 since!
 
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jad007

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Thanks all for the responce. Will find some 97 fuel!
 
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LE#99

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Hmmm, ultimates have cleaners in them so will clean carbon from the internals etc. Yes they have less ethanol (which eats carb diaphragms etc and makes the petrol go off much quicker) but we don't use super etc as I'd prefer to keep the carbon and clean out my carb at the end of the day as we have not had issues so far.
 
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Hmmm, ultimates have cleaners in them so will clean carbon from the internals etc. Yes they have less ethanol (which eats carb diaphragms etc and makes the petrol go off much quicker) but we don't use super etc as I'd prefer to keep the carbon and clean out my carb at the end of the day as we have not had issues so far.
Valid point tbf! Never thought of it like that. All depends if you are running a semi or full syth oil too I guess? The ethanol attracts water too so I read?

I would always go with whatever your engine builder recommends I guess. Also must depends on engine; x30, rotax, with or without PV etc etc.
 

LE#99

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I honestly don't think it will directly affect performance once you get to junior or senior, its more of an equipment management thing. If it does affect performance it would only show at the sharp end of high level races such as lgm, British, masters and ukc I guess
 
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Seanl

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Totally agree with the above. Everyone worries about it eating rubber seals, but that won't happen for a long time (10+ years on road cars). If you're maintaining it well and it's being rebuilt within specified windows (even if not in most cases), you'd be miles inside the likely timeframe for it to have any affect whatsoever.
 
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