Thread: E 10 Confusion?

Originally Posted by Ausfree

Another thought, people would go to that servo buying what they think is ULP to use in their Lawnmowers/Whippersnippers/Chainsaws/etc thinking they are getting the right fuel and as we know E10 is NOT recommended in small motors and they then run the risk of long term damage. How many other servo's are doing the same thing? I think I might buy PULP for my small motors from now on!!

2 strokes, PULP will be OK .... BUT NOT in 4 strokes UNLESS you're REALLY working the tits off them constantly .... and a 4 - 5.5Hp 4 stroke lawn mower does NOT work hard.

Those engines require ULP, or E10 when there's no other choice. The engine's won't suffer from the E10 fuel ... but the fuel delivery system will.

... and don't store your fuel for more than 30 days ... or use a fuel stabilizer in your fuel ... especially for machinery that MUST go when called upon to do so ... like standby generators, and fire pumps, etc ... run them every 2 months, then retop the tank with stabilzed fuel (minimize the air space in the tank) ... and after 9-12 months max' dump all the fuel, and replace with a fresh batch of stabilized fuel.

fwiw
Kev..

PS - Aus' I'll let you know when I get a chance to test some PULP.

love the avo Kev

yes e10 is 94 octane rating with 10% ethanol, here is another interesting fact
normal fuel can have up to 500L water in the underground tank before being a problem, ethanol 0

In NSW at least, you can expect any petrol to contain some (up to 10%) ethanol without being labelled as such. It is questionable whether this will directly cause any problems with Series engines. Higher concentrations may certainly affect some rubber components, critically fuel pump and carburetter diaphragms, but whether these are affected is pretty much hit and miss, as they were never tested with ethanol.

Upper cylinder lubricant is not necessary with any Series engines unless used consistently at high power, such as prolonged freeway driving. As an example, I have been using my 2.25 for about ten years now on unleaded, with no signs of valve seat recession. As far as octane rating goes, almost all Series Landrovers are very tolerant, although the timing may need to be adjusted.

The major problem with ethanol though, is indirect. Ethanol is hygroscopic, that is, it attracts water. It will absorb water from the atmosphere. Once this is absorbed, you have a mildly corrosive fluid in your fuel system. It will cause corrosion in the fuel pump and the carburetter in particular. It is especially a problem in humid climates, and where an engine is not used regularly. Less of a problem in the dry inland and/or where the vehicle is in regular use, so that the fuel is renewed frequently, and does not have time to absorb much water.

You should, if not using it regularly, run the carburetter dry after each use (on Series 1 put a switch in the pump circuit and run it until it stops) and keep the fuel tank full to minimise the amount of air in contact with it - blocking the tank vents would help too.

John

i know this does vary from car to car but i noticed on my hilux that i got alot better fuel economy on 98 but 95 and 91 not much different and in the end it was cheaper to run it on 98. has anyone tested this on series?

[QUOTE=JDNSW; I have been using my 2.25 for about ten years now on unleaded, with no signs of valve seat recession.

John[/QUOTE]

And how many km have you travelled in those 10 years? W.

Originally Posted by B.S.F.Nut

And how many km have you travelled in those 10 years? W.

I don't keep mileage records, but it has done 70,000km in the twenty years I have had it, and the first few years did not do much, so probably 35-40,000 in the last ten years. Most of that being offroad. Not a huge mileage over the time, but certainly enough to tell whether unleaded is a problem. Note that this engine was sold in Canada for several years when only unleaded was available, without any reports of problems.

This of course does not apply to the 2l engine - but it has steel exhaust valve seats anyway, so is unlikely to have a problem.

John

I thought that lr series engines had hardened valve seats and therefore did not have issues with running unleaded.