Fuel Consumption

[Tug]

Hi,

Can anyone give me any ideas what MPG i should be getting from my 2.0 Aircooled. It seems to be using a lot of petrol as of late.

These are the things I have checked :

Brakes not binding

Its had a new fuel tank

vacuum is working

Choke is coming off when it warms up

Tyres have correct pressures in them

its not running rich.. well it passed the mot no probs....


I put approx £80 of unleaded in it and i got approx 300 miles to a full tank... well just in the red....It just seems heavy on the old juice....

Any ideas what else it can be.....Full carb rebuild but it runs great...

Glenn.

[Fritz]

Expect anything between 18-22 or a bit more on a long run, and it won't make much difference if it is loaded or not.


Regards

Fritz,,,,,,,,,,

Fitting an Lpg kit is the only way to go with these Aircooled engines.

[veedunk]

You are lucky to get 300 miles to a tank, just worked mine out to be 18.5mpg and only getting about 250 miles to a tank.

Cheers

Duncan

[phade]

A 2.0 litre Aircooled's combined fuel economy according to UK government figures is 23 mpg. My one does on average 25 mpg mostly on motorways and some single carraigeway roads.

300 miles on a full (60 litre or 12 gallon) tank is about right.

18.5 mpg seems a bit excessive to me, although that could be done to things like traffic, tyre pressures, etc.

[kevtherev]

I'm guessing if it had cost £35 to fill up you wouldn't have asked about consumption.

petrol sure is expensive these days.

Glad I gassed mine.. as that fill up price is very constricting on a budget.

[redstar]

it used to cost me (when petrol was cheapo 98.5p l) 45 quid for 230 miles. that was with a fully laden 2000 ac with a 4 speed 1600 gearbox attached. dont expect too much! i then bought a diesel and look what has happened to the price of chip fat!!!! im sooo lucky!

[Tug]

Well did a weekend run to devon and have noticed better fuel consumption....

1.Noticed a tiny leak coming from left hand carb (Very very very slight)
Replaced gaskets (made them from gasket card)

2.Fabricated a silver pipe running to air intake.

3.Ignition timing is spot on as per haynes.

4.Rear tyres were at 35psi and have been told too inflate them to 47psi. The van now gets off wet grass (work that out ...... ) I always deflated the tyres slightly to get grip in all my other vehicles (Mud , Snow , Sand etc ).

Anyhow van seams to run better apart from my nerves which were pushed to the limit with the high winds on the M5 today....

[lambrettalee]

[quote="Tug"]

I put approx £80 of unleaded in it and i got approx 300 miles ... it will cost that for a gallon soon fella, sounds ok to me...

[phade]

Hiya Tug,

First of all get that fuel leak sorted out immediately. Delaying in doing so can put you in danger (eg. a van fire).

Tyre pressures for the Type 2 T3 (in the case of my Autohomes Komet campervan fitted with 185 R14C tyres) are as follows (tyres cold):-

- Front: 38 psi

- Rear: 55 psi

Tyres should always be correctly inflated since it could seriously impair the handling of your van and possibly put you in jepeordy. A badly handling van of this size is no laughing matter !!

I learnt this lesson once in my 1300 Beetle when I didn't check to see what a garrage had inflated my front tyres to when I had them changed (this was Volkspares a few years ago). They were inflated at 30 psi (dangerously high) instead of 18 psi, which made my car feel like it was on an ice rink !!

[Tug]

Hi,

Thanks for that Bud...
I have repaired the leak......I did it before i went south on Saturday.....
Have noticed better fuel economy......

You say PSI should be 55

Will inflate them to this and see how it handles. Was contemplating on lowering by 45mm as seemed to wander with gusts and can be a handful at times....

Thanks again

[funbus1]

Lash a lower front spoiler on, it works wonders.

[jaylo264]

Had wondered about a front lower spoiler , as we live in the windy wastes of scottish highlands , do they really help in cross winds etc ? jaylo

[phade]

Your van wandering around when a gust of wind hits the side of it is pretty normal, especially if it's a high top like mine. It's less than a handful than my mexican beetle is when a gust of wind hits it.

[jason k]

front spoiler will help marginally but dropping it 45mm on decent springs like avo h and r or weitec will make a hell of a difference.
my hi top westy is on -45mm avo s with bilstien b6 dampers and it desnt get affected by winds at all. and it goes round bends as well as my car!!

for springs and shocks try
www.brickwerks.co.uk

[mikey9]

Jayle - my front spoiler is off for now - will tell you how much difference it makes when the wind is blowing through the Kessock Bridge. I suggest all others stand back (and call the RNLI) whilst I carry out the exercise....