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[Lazydocker]

Low 20's is about right for a 3.2 auto, though. You should be getting better economy than that.

What LPG system do you have?

"Professionally" installed?

I can't get more than 17-18mpg from my 3.2 

I get about 19-20mpg from the 3.0, and its driven harder.

Usually LPG gets what, 20% lower than petrol?

My 2.2, would get 30/32 ish on average on petrol. Get 24/25 ish on LPG, have seen 27mpg on very long runs.

So with my 3.2, i get 27mpg average usually, so should expect around 20mpg on gas 

 

Hell knows, I can't drive like you.

Me neither... I can't even walk that slowly

[albitz]

Id like to know your secret Tunnie.I drive my 2.5 (LPG) quite gently and am lucky to get 200 miles from 50 litres.Similar to LD, my car does have a lazy stat (and an owner thus far too lazy to change it),but I dont think that could account for all of the difference.
When I sort out my engine bay this summer (basically,reinstall the front end of the LPG) it might be worth getting someone knowledgable - posssibly someone from Suffolk ?  - to do some checks and settting up etc. to check all is still well.

[RobseyMV6]

I put £25 in my 3.0 this week to try the kit as i didn't and wasn't sure if would just leak out? was empty so £25 come just under half tank did 85 miles and looked when home and now bottle has 1/4 tank still left, was driving omega fairy hard....

[Lazydocker]

I put £25 in my 3.0 this week to try the kit as i didn't and wasn't sure if would just leak out? was empty so £25 come just under half tank did 85 miles and looked when home and now bottle has 1/4 tank still left, was driving omega fairy hard....

Ignore the level gauge for LPG... They're "temperamental" at the best of times

[Marie]

my lpg mpg is good if i rag her between home and work (225mile ish) i can get 180out of 38 ltrs. if i drive her sensible and shes not full loaded i can get 200 miles.

my petrol is really bad not watched her mpg like i do the gas but it milage counter says i have done 33 miles and i have just dropedpast the 60 litres marker. and i fill her to the gunnals.

[RobseyMV6]

Been out on lpg this evening again 115 miles hasn't run out but popped boot and tank reads empty now.
So guess not much more to be had now...

[Taxi_Driver]

my lpg mpg is good if i rag her between home and work (225mile ish) i can get 180out of 38 ltrs. if i drive her sensible and shes not full loaded i can get 200 miles.

my petrol is really bad not watched her mpg like i do the gas but it milage counter says i have done 33 miles and i have just dropedpast the 60 litres marker. and i fill her to the gunnals.

Thats about what my 2.2 used to do on lpg, I know if i did a gatwick run (about 220 round trip) if i didnt stop on the way back and fill up again at reading services, i'd run out about 20 miles short of Swindon.....that was at a pretty constant 70mph tho. Similar size tank.

[TheBoy]

IME, LPG gives a low MPG if short filled, no idea why, surely not that much is lost in filling?

I would imagine smaler tanks show a similar effect to short filling?

[omegod]

OP here!

It's a Koltec system thats been on it since new. It's great on a run when I have had up to 360 miles on a tank full but seems to be giving shite MPG recently, got a feeling my coil pack is on it's way out which may/may not be related. Will give it that service and see what happens