Thread: Ethanol in Land Rovers

Would actually be down on power unless the engine is retuned for it.. And then economy (l/100) gets worse.

Engines designed for E85 detect the fuel and dramatically adjust fuelling and ignition advance... Usually having specific injectors and fuel pumps to handle the fuel flow increase.

agreed but for initial warm up for transfer over to LPG the adaptive tune gap on the high% eth fuel to LPG is lower.

Originally Posted by Blknight.aus

agreed but for initial warm up for transfer over to LPG the adaptive tune gap on the high% eth fuel to LPG is lower.

Indeed - alas the other characteristics of E85 then come into play... Hygroscopic- so want to turn it around very regularly... Tank rot, and damage to seals, pumps and lines at that concentration.

(I know I'm preaching to the choir Dave!)

thats why I linked the other thread.

but its a double edge sword.

do you want to deal with the jelling of stock fuel and the stuff it breaks down to in hot fuel rails when its not moving and the change over learning every time you cold start and change over OR do you want to deal with the potential problems of hygroscopic and corrosion from the high octane fuel but pick up better adaptation?

do you then permanantly adapdt the timing and hope you can always get the E85

Except the adjustment in tune isn't that much any more. (Knock wise/Timing)

LPG minimum RON is 101
Premium ULP minimum is 98 RON.

The days of 110+ from LPG is long gone as the blend changed years ago.

Engine builders won't crank up the compression like the did years ago for LPG... It doesn't have the same mix in the cocktail.