Is there something wrong with my mpg figure...?
Discussion
2004 5.7 VXR Monaro.
I'd like to clear this up since quite frankly it's either me or my car but somethings not right.
There's some on here which are saying 300 miles once filled up by the trip computer. Mine tells me 240, and that's the very maximum it reads. But I always find really no more than 180-200 max per tank.
And this is what really sticks in the throat, I'm seriously not driving it very hard all the time. Ok a bit of a blast on the dual carriage here and there but a majority is spent with mixed driving, a fair amount being easy driving and using 6th gear around fifty miles an hour! I'll admit I don't use it for motorway journeys. The only motorway journey I have done is when I bought the car, circa 235 miles and even then I used 6th, kept it steady between 65-80 and it used a tank and a half!
I can't figure why with driving the car easily and normally (most of the time) I'm getting such low mpg. Ten quid see's no more than twenty miles.
A very confued Monaro owner.
I'd like to clear this up since quite frankly it's either me or my car but somethings not right.
There's some on here which are saying 300 miles once filled up by the trip computer. Mine tells me 240, and that's the very maximum it reads. But I always find really no more than 180-200 max per tank.
And this is what really sticks in the throat, I'm seriously not driving it very hard all the time. Ok a bit of a blast on the dual carriage here and there but a majority is spent with mixed driving, a fair amount being easy driving and using 6th gear around fifty miles an hour! I'll admit I don't use it for motorway journeys. The only motorway journey I have done is when I bought the car, circa 235 miles and even then I used 6th, kept it steady between 65-80 and it used a tank and a half!
I can't figure why with driving the car easily and normally (most of the time) I'm getting such low mpg. Ten quid see's no more than twenty miles.
A very confued Monaro owner.
If its been properly serviced recently get it rr to check things are ok
But they do like a drink, some people post about the max range and mpg I do short journeys daily driver and get 16mpg, just done a round trip from mcr to monkfish all motorway a few hundred miles and was 26iirc and that's the best I ever saw. They are what they are, get it on a rr if the bhp is as expected then its just live with it. If bhp down you may need to start looking at faults messing up the mpg. These are not French hatches they use lots of petrol mate.
But they do like a drink, some people post about the max range and mpg I do short journeys daily driver and get 16mpg, just done a round trip from mcr to monkfish all motorway a few hundred miles and was 26iirc and that's the best I ever saw. They are what they are, get it on a rr if the bhp is as expected then its just live with it. If bhp down you may need to start looking at faults messing up the mpg. These are not French hatches they use lots of petrol mate.
Tattooboy said:
70 litre tank = 15 odd gallons, around town driving 18 Mpg around 270 miles tops, the joys of owning a V8 I'm afraid.
Only long motorway journeys will you see a decent mpg return
Only long motorway journeys will you see a decent mpg return
I'm seeing 11-15 round town, plus I don't get why it took two and a half tanks to cover circa 235 miles when I drove it home on the day of purchase.
If I nailed it all the time, I'd say fair enough. It's like it's got the efficency of a classic V 8 engine.
lastmin8264 said:
If its been properly serviced recently get it rr to check things are ok
But they do like a drink, some people post about the max range and mpg I do short journeys daily driver and get 16mpg, just done a round trip from mcr to monkfish all motorway a few hundred miles and was 26iirc and that's the best I ever saw. They are what they are, get it on a rr if the bhp is as expected then its just live with it. If bhp down you may need to start looking at faults messing up the mpg. These are not French hatches they use lots of petrol mate.
But they do like a drink, some people post about the max range and mpg I do short journeys daily driver and get 16mpg, just done a round trip from mcr to monkfish all motorway a few hundred miles and was 26iirc and that's the best I ever saw. They are what they are, get it on a rr if the bhp is as expected then its just live with it. If bhp down you may need to start looking at faults messing up the mpg. These are not French hatches they use lots of petrol mate.
Yeah, was planning on visiting the dyno soon enough. Doesn't feel odd or sluggish, doesn't smell of a rich mixture. Although can be slightly smokey when at times. More of a light grey smoke than darker or black.
The Seer said:
007 VXR said:
reset the trip computer and try again
Gonna have to be, but pay day isn't for another few days and me and the car have drunk all our money already!but he had not reset the trip for over 10k miles
so no matter how slow he drove he could not get any better mpg;)
reset it and go for a motorway run.
007 VXR said:
mine reads 30 to 40 at 80mph
Ps. going on my local scoobies Dyno' Day this sunday....see what the BHP and AFR readings are like.
The Seer said:
ARAF said:
Next time you stop, check that none of the wheels is hotter than the rest.
Surely I'll be able to feel if there was some hinderance from the braking system? Nothing so far has alerted me to it, no suspicous feedback etc. But yes maybe worth a go.V88Dicky said:
The Seer said:
I'm seeing 11-15 round town, plus I don't get why it took two and a half tanks to cover circa 235 miles when I drove it home on the day I purchased it.
2.5 tanks to do 235 miles!
That's over 37 gallons and <6.5 mpg
Sorry, my mistake it was a tank and a half.
007 VXR said:
The Seer said:
007 VXR said:
reset the trip computer and try again
Gonna have to be, but pay day isn't for another few days and me and the car have drunk all our money already!
snowwolf had this problem
but he had not reset the trip for over 10k miles
so no matter how slow he drove he could not get any better mpg
reset it and go for a motorway run.
I think this could have something to do with it. I haven't reset it and it's possible it hasn't been reset for sometime.
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