MPG For the MR2

Stinky · 12 Nov 2006 at 12:51

I;ve just done a 123.8 mile round trip including down driving. but mostly dual carrage way

have returned with 43MPG for the trip.

i am pleasently supprised. it seems pretty good considering the car

Serj · 12 Nov 2006 at 12:54

Yeah on the motorway mines very economical. However around town it's pretty poor, but that's because my trip to uni is quite short and the car doesn't warm up fully.

Btw, your speedo may be under-reading, mine shows 70 when i'm actually doing 65, hence why economy can appear to be uber at higher speeds just by using the speedo.

The_Dark_Side · 12 Nov 2006 at 12:55

Serj said:
Yeah on the motorway mines very economical. However around town it's pretty poor, but that's because my trip to uni is quite short and the car doesn't warm up fully.

Btw, your speedo may be under-reading, mine shows 70 when i'm actually doing 65, hence why economy can appear to be uber at higher speeds just by using the speedo.

that's over reading mate and all car speedo's are legally required to do so.

Serj · 12 Nov 2006 at 12:57

The_Dark_Side said:
that's over reading mate and all car speedo's are legally required to do so.

Oops sorry, yeah over reading. I know all speedos do that, but some more than others which i believe is the case with the 2 as my previous cars have only been a couple of mph out.

Dogbreath · 12 Nov 2006 at 13:10

The_Dark_Side said:
that's over reading mate and all car speedo's are legally required to do so.

Another often quoted statement that it not strictly true. The legal requirement is that the speedometer not under-read from new, i.e. a speedo can legaly have a 0% to +10% error. However speedo error can change dramaticly over the life of a car. A replacement gearbox, different wheels and tyres, the addition of aftermarket dials or just a sticking meter movement could cause the speedo to under read. Just because the law says they mustn't do that when new, dosn't mean it can't happen later.

The_Dark_Side · 12 Nov 2006 at 13:16

Dogbreath said:
Another often quoted statement that it not strictly true. The legal requirement is that the speedometer not under-read from new, i.e. a speedo can legaly have a 0% to +10% error. However speedo error can change dramaticly over the life of a car. A replacement gearbox, different wheels and tyres, the addition of aftermarket dials or just a sticking meter movement could cause the speedo to under read. Just because the law says they mustn't do that when new, dosn't mean it can't happen later.

i guess i've always took it to mean that a speedo MUST have such a tolerance when it actually means they CAN have such a tolerance.
it helps everyone if their speedo's actually do read higher than true though as to break the speed limit by a small amount your needle will be indicating a larger transgression.