Thread: Considering LPG on my 4.6 GEMS

A basic single point mixer system will work quite well so long as the spark plugs are chosen for gas. I wouldn't import a tank as all tanks sold in Australia have to meet AS1425. If you found a second hand system you could be up for round $2000 and there is still a $1500 government rebate applicable to new and second hand installations. The best tanks are sold by Blue LPG and fill the spare wheel well. then you need somewhere to put the spare safely.

Anyone know anyone selling a second hand system as well?

The best value second hand tank is the APA model K275H donut (toroidal) tank to suit VT to VY wagons. It holds 60litres of LPG. There is no need to buy a "kit" as most parts are separately available and fit other vehicles too. Except for the special filler for the P38 and maybe the mixer ring, all the other bits can come off a suitable later model (90's) commodore or falcon. Visit a few Holden wreckers and ask about the donut tanks.

Fits like this one I did a couple of years ago

Originally Posted by daljames

Anyone know anyone selling a second hand system as well?

PM sent.

I've driven both the Single Point & Sequential Injection Kits and I can't emphasis how much better the Sequential Injection Kits are.

As stated previously both Junosi & I have purchased the Marrelli Kits from the UK. After some initial teething problems both are working great. My Trip Computer reports average Fuel Use as 15.3L Per 100km, actual LPG usage is around 18L per 100km, which is fantastic for a Low Compression Motor.

I've heard people talking about 30L+ Per 100km for the Single Point Mixer Style Kits, as well as the risk of backfire which is eliminated with the Sequential Injection Kit.

Under Bonnet Kit from UK: ~$900 Delivered
Used Toiroidal LPG Tank 60L: ~$300
Installation,Setup & LPG Lines: ~$1200

Overall: +$2400

If you go down this path, there are some little tips which will make life easier for you (dont want to go into extreme detail at the moment) however shoot my a PM and either Junosi or I can discuss.

N.B: Imported Kits can still potentially qualify for the Government rebate, however if Installation + Tank is more than $1500 it doesn't really matter, as you can just claim based on those Invoices (which is what I did as I purchased a New 72L Tank)

Just ordered another kit for the Wife's P38 today.
My Car will run exclusively on Gas only right up to the Redline (obviously after Warming Up), seems to have more Power & Go on LPG (which I link to the Higher Octane Rating of Gas) and certainly revs easier on gas as well.

I now spend less $$$ Driving the P38 around than my 2002 Volvo V70 2.5L Turbo, which used to average around 10L per 100km.

Any luck with the details on where to buy from in UK?