e10 petrol in a 3.8?

[multihull]

Can E10 petrol be used in a 3.8 litre JK, will it effect gaskets and other parts.
The reason I'd like to know is E10 is classified as 94 octane and when run in the 3.8 it helps prevent pinging, it's also cheaper.
Your thoughts and feed back?

[MightyMouse]

I wouldn't put an ethanol blend in my neighbors lawnmower.

There are good technical reasons why it causes fuel system issues with many vehciles and having seen the insides of an engine after a durability test on E10 its not great for the mechanical bits either.

Give it a big miss.

[multihull]

Originally Posted by MightyMouse

I wouldn't put an ethanol blend in my neighbors lawnmower.

There are good technical reasons why it causes fuel system issues with many vehciles and having seen the insides of an engine after a durability test on E10 its not great for the mechanical bits either.

Give it a big miss.

Yeh but a lawn mowers engine is a bit more advanced with more power than than a JK 3.8 engine.

[Wazza D]

Originally Posted by multihull

Yeh but a lawn mowers engine is a bit more advanced with more power than than a JK 3.8 engine.

LOL. Aww come on, they're not quite that bad are they?

[Banshee]

Actually, lawnmowers have lots of parts that are still vulnerable to ethanol, but the 3.8 doesn't. At least, my '08 3.8 manual has been fine running on it for the best part of the last 6 years... (I killed a lawnmower carbueretor with E10 as there is no 91 around here. Now I run them on 95...)

I ran it for several months on each of 98, 95, & E10 & found no significant difference in the mileage for any of them. 98 might have been a little better, but it didn't help the pinging on steep hills, and definitely wasn't value for money as far as improved mileage.

(Fixed the pinging eventually by putting on the AEV snorkel to get cooler air into the engine. It seems that, in my case at least, high inlet air temp was a major part of it. Since installing the snorkel, the inlet temp dropped to around 5C over ambient from minimum of 10-15 over. Except when idling at the lights, then it might get up to ~15 over.)

[humdingerslammer]

I haven't noticed an improvement in fuel efficiency... about the same I reckon as unleaded. And i also haven't found using higher octane uses less fuel or is more "dynamic" in terms of engine performance etc.

So I am not sold on the idea that it actually works out cheaper to use E10. I think that I tend to use more fuel when I fill up with E10 while towing outback etc.

Can't comment on whether the E10 causes engine/seal etc damage to the 3.8. Mine is still going after 180000km and it has done a lot of miles with E10.

[SeaComms]

Mine was on 130000 whrn I traded and mostly 95 e10 with no issues. Marginally better economy with 91 no e but did ping a little more especially when towing the camper.

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