Upgraded my Wizard

[Len]

Well, finally went out and traded up to a 2000 Wizard from my 1997 3.1. The 4JX1 motor really goes well, but seems to use a bit more fuel. Maybe because of my foot being heavier, using the extra power?. The question I really want to ask here is Does anyone know anything about using biodiesel or a veg oil mix in Isuzu motors? There's heaps about it on the Web, but I'd like to hear from anyone who's used it in an Isuzu.

[Roscoe]

Gday Len, I dont know about the bio diesel mate, its not available here anyway (NZ)

Its critical that you use the correct oil grade in the 4JX1, It has to be a 5w30 or 40. def 30 in the colder climes.

The oil does 2 jobs in these engines, one is the normal lube as in any engine and the filter for this is on the right hand side. The other task is to pulse the injectors, there is a seperate pump for this and the pressure has to reach 750 psi initialy to open a valve on the pump then the full pulse pressure which is 4,000 psi has to be obtained on the starter before the computor will let the engine start. This uses a seperate filter which is on the left hand side of the engine.

A dealer told me that the small, left hand filter is a secondry one after the larger right hand one and only needs changing every second service, that is crap, They both must be changed during normal service.

These are a modern high tech engine and bloody expensive so good servicing makes sence to me.

Cheers

[Len]

Thanks for that Roscoe, handy bit of info there. Regarding the biodiesel, I've read about people just adding veg oil to the diesel in the tank, at about 10-20% ratio. Just wondered if anyone had tried it. I'd be too scared to be the first........

[geeves]

Ive read one tread with it clogging injectors in cold weather. That engine is not the one that I would be experimenting how well cooking oil runs with. Also do you have a cheap source of oil To buy from the shop is $4 a liter. Second hand from the chippy would need serious filtering.
A few countries sell biodiesel and its suposed to be better for the engine and envoiroment but you need a good sourse of vegi oil to make it. Most are based on rapeseed oil.
It would be good to convert my grass clippings into biodiesel but I dont think it would work
It cost $68 to fill today for 660k +Judds farm
A freinds petrol Disco was taking $100 for 350 k before gas went up anouther 20c a liter

[Roscoe]

My last fill here for my Wizard (4JX1) was $36 for 480 kms, that worked out to around 8 ltrs per 100 kms.

Most of that was with the air con on and a mix of around town and open highway.

[CraigO]

Hi, Heres a link to an article on making/using veggie oil and biodiesel

www.homepower.com/files/biodiesel72.pdf

In the article it mentions 2 tanks. One for Diesel and a 2nd for the oil and heating the oil before it enters the engine. The reason for this is not to use veggie oil while the engine is cold as the fatty acids in the oil starts to congeal and harden (coke up) the insides of the engine, fuel injectors and other bits. This also aplies to adding veggie oil to your tank.

Of cause remember to send the cheques to the IRD

Cheers

[Len]

Hey thanks for all that info guys, but I don't think I'll be experimenting now that I've looked into it. Doesn't it P you off how the price of diesel keeps going up at a much higher percentage than petrol, though? Last increase was 6c / litre, against petrol's 2 or 3.