19.9mpg!?! 172 cup any ideas

[Jack 172]

I may be a bit heavy footed sometimes but that is a joke, usually sits around 32mpg any ideas?

 

[MartinR]

Many different things can cause poor mpg.

 

[MonkeyKnifeFight]

An old Lambda sensor can cause low mpg.

 

[Jack 172]

An old Lambda sensor can cause low mpg.

Just looked back through and it looks like it's still the original lamba, would that not throw up an emmisons light at all?

 

[Ex-User (99307)]

Mine hasn't and the lambda is totally dead (Being replaced tomorrow).

 

[Jack 172]

Mine hasn't and the lambda is totally dead (Being replaced tomorrow).

Ok cheers luke, if you don't mind me asking how much is a new lamba?

 

[Ex-User (99307)]

I paid £57 on everyone's favorite auction site.

 

[rsRob]

Is the car car running rough, hesitating etc?

Before spending any money, get the car in the air and try to turn all four wheels by hand. (Out of gear / hand brake off obviously). Sticking calipers on mine has caused poor mpg on a recurring basis.

 

[.GAZ.]

Jesus! I get that MPG, on track.

 

[Rob669]

Jesus! I get that MPG, on track.

Not trying then! I get 8.9.

 

[Inequality Street]

Jesus! I get that MPG, on track.

Try harder I got 7MPG on track!

 

[Mr Plums]

Do you park up with your key turned to the 2nd click so your petrol needle moves etc?

I was today and my mpg was going down without the engine running lol.

 

[imprezaworks]

How do you get sub 10mpg on track? Would need my own personal shell tanker when I take mine lol

 

[Coops Mk1]

I get 11 on track with an ancient dizzy and rotor powered F7P turbo engine with 300bhp, so god knows what people do to the F4R's to do that badly

shite mapping?

 

[Jack 172]

I get 11 on track with an ancient dizzy and rotor powered F7P turbo engine with 300bhp, so god knows what people do to the F4R's to do that badly

s**te mapping?

As my original post usually get 32+ mate , seems to of leveled out now will defiantly keep a close eye on it!

 

[J.B.]

Just check the brakes aren't siezing first. That's an easy one to check by jacking the car up, and also check how hot the brakes/wheels are after 10+ mile drive. Not sure you'd see such a dramatic drop if it was just brakes though.

The front brakes siezed on my S2000 which cut the MPG by from 30 to 26.

 

[Jack 172]

Just check the brakes aren't siezing first. That's an easy one to check by jacking the car up, and also check how hot the brakes/wheels are after 10+ mile drive. Not sure you'd see such a dramatic drop if it was just brakes though.

The front brakes siezed on my S2000 which cut the MPG by from 30 to 26.

The rear brakes do sieze over night when I park facing down my hill, the lad before me had 1 caliper changed for mot I do belive, mabye the other side needs to be changed I will have a look thanks