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400 Four - PETROL GRADE CURIOSITY ?

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400 Cafe Racer:
Hi Guys,

I know there are many long time 400F members out there having run their bikes for yonks on various Petrols. I'm interested to see which type of unleaded (Regular) or (Super) you settled on and why. ?

Thanks ;)

Dennis

allankelly1:
Super all the way

Don’t do many miles in a year so extra cost is worth it and at the moment super in most areas is ethanol free still

Also we know e5 does cause issue on some rubber and plastic parts on older bikes and modern plastic fuel tanks so why take the risk?

Best wishes Al


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Nurse Julie:
Always used supermarket regular in the past because it was cheap, now using Super Unleaded because its E5 (up to 5% Ethanol content), instead of the cheaper fuel which is now E10. I ended up with a bit of both a couple of weeks ago, so E7.5 😁😁😁😁 bike runs just fine on it but everything rubber on our bikes fuel systems is Viton anyway so I won't worry if I have to put the odd tank of E10 in.

400 Cafe Racer:

--- Quote from: allankelly1 on October 11, 2021, 07:32:02 PM ---Super all the way

Don’t do many miles in a year so extra cost is worth it and at the moment super in most areas is ethanol free still

Also we know e5 does cause issue on some rubber and plastic parts on older bikes and modern plastic fuel tanks so why take the risk?

Best wishes Al


Sent from my iPhone using Tapatalk

--- End quote ---


Thanks Alan & Julie,

I fully agree with the thoughts on Ethanol. 

Although Super is possibly not strictly necessary on terms of the 400 Compression Ratio, I'm assuming that some of the higher grade refining of the Super might have some beneficial effects in the burn process, that one may have noticed in use.

Has there been any apparent difference in your experience ?

Thanks :)

Dennis

allankelly1:
No as only run on super cannot comment but news on the street is e10 gives you less mpg in certain circumstances I presume due to a lower calorific rating due to the introduction of this bio fuel

I know some guys due to there low miles if e10 becomes the only supply are talking if  going over to avi gas as it E free and piston engine planes will be around along time after the government try to force / tax the ICE of the road due to their their underhanded tactics

Just is a bit more expensive


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