I filled the tank full, using the venting method and reset the trip computer. This morning I drove to 117.2 miles. After this distance the trip computer showed I still had a range of 515 miles.
Giving the total range of the tank as 632.2 miles if I had carried on.
ah well this is where you went wrong.
the range is based on recent driving only. litterally the last few miles.
so if you went for a steady drive on the motorway then slowed down and stopped it would base the range on the last few miles of motorway driving only including slowing down and so the indication that you can get another 515 simply isnt possible.
What you have done is basically cherry pick a small part of the journey. - Next time you go for a drive let me know what the range is indicating after a few miles..
If you dont believe me try taking it easy for the whole tank and see how many miles you actually end up doing.
Interestingah well this is where you went wrong.
the range is based on recent driving only. litterally the last few miles...
What type/brand of fuel have you used since you bought your car - the same brand more or less consistently, or a variety?...I've had the car from new and done over 88,000 miles...
What type/brand of fuel have you used since you bought your car - the same brand more or less consistently, or a variety?
Ta![]()
Interesting![]()
I recently checked my LCR's 'real MPG' vs the trip computer's average MPG: filled up, did a 112-mile trip (some A/B roads, then mostly motorway and dual-carriageways) and at journey's end the trip was showing an average of 29mpg. At which point, I also re-filled the tank and calculated mileage-divided-by-gallons-consumed. Result? 29mpg.
So, in the instance above, how can the computer's average MPG be "based on recent driving only. litterally the last few miles"?![]()
Just askin'![]()
What type/brand of fuel have you used since you bought your car - the same brand more or less consistently, or a variety?...I've had the car from new and done over 88,000 miles...
That's intriguing, because Willy's owned his LCR from new and always used Optimax/V-Power, and in the past he's commented that he's often able to achieve 40+mpg.Always V power

Umm... ah... OK...i agree, however thats not what i said- i said the RANGE displayed is based on recent few miles...
i agree, however thats not what i said- i said the RANGE displayed is based on recent few miles.
The range is therefor saying you will do this many miles if you keep driving like you have recently.
The mpg is based on longer term, something like 300 hours or 1500 miles.. something like that
What type/brand of fuel have you used since you bought your car - the same brand more or less consistently, or a variety?
Ta
That's intriguing, because Willy's owned his LCR from new and always used Optimax/V-Power, and in the past he's commented that he's often able to achieve 40+mpg.
It would seem, therefore, that Optimax/V-Power's alleged cleaning properties actually work?
I mention this because I'm beginning to suspect that LCR injectors are prone to partial clogging/fouling if run on any old type of fuel, which may explain why some LCRs are currently not getting the MPG they used to achieve?
Also noted that Evo mag ran a new Mk1 LCR as a long-termer in '03. And the test's average MPG was approx 29. So, considering it was thrashed/driven by a bunch of lead-footed hacks who don't pay for their petrol, a 29mpg average is pretty impressive.
Obviously Evo's car was brand new, but it also had squeaky-clean injectors...![]()
there are two mpg figures.The mpg is not based on 300 hours or 1500 miles! It is what you are currently achieving since reset. If you leave the car longer thatn 2 hours without driving it will reset.
there are two mpg figures.
one for current journey and the other is as i said, which is what you would use to see overall mpg for a tankful of fuel![]()