2012 GSA TANK RANGE

[Wapping]

I can not do even the most basic of maths,

Google (as always) is your bestest friend:

'mpg converter'

http://www.torquecars.com/tools/uk-mpg-calculator.php

It will even do the money bit, too.

 

[Geziuks]

Here is a fool proof way to calculate EXACTLY how many mpg your bike (or car) is doing. I pretty much do this every tank as I think it can be a great early warning systen for something not being right once you know how much it usually does.

1) On the center stand fill the tank so the fuel is just touching the bottom of the filler neck. Be careful as you don't want a spillage of the precious stuff. The trick here is to be consistant - it doesn't really matter where the fill level is, as long as you can replicate it every time.

2) When you are ready to fill up again (it doesn't have to be empty). Just fill it up to the same level as before.

3) Make a note of the milage on the trip and the amount of fuel you put in. - Clue: It tells you on the pump, just above the amount you need to pay.

The calculation: MPG -So I can show the working out lets asume we put 19 litres in and managed 220 miles.

The amount will most likely be in litres, so we need to convert this into gallons (imperial) There are 4.55 litres to a gallon.
19 (litres) divided by 4.55 19/4.55 =4.17 gallons

So we did 220 miles on 4.17 gallons
to work out the actual MPG is
220 divided by 4.17 - 220/4.17 = 52.75 mpg

The key point here is to consistently fill the tank to the same level. Even if you are a small amount out it will give a near enough figure.

I realise that most know this already, but if it helps 1 or 2 then it's all good.

Even this is not 100% accurate, as you are relying on the trip recorded by the bike to be accurate. You can always use a sat nav it you need to be anal about it.

On a side note. I had my MINI serviced last week and they gave me a terrific courtesy car (A JCW MINI Cooper S Coupe) OMG that thing flies. But when I took it back they wanted to charge me £1.80 + VAT for the fuel used." How do you know how much fuel I used?" I asked. Apparently the amount of fuel in the car is held on the chip in the key. I can grasp the fact they the car knows how much fuel it has used, as the sensors would know this. But I cannot get my head around how it knows what went in. Answers on a postcard......

A question! Will cold weather affect mpg?

 

[Nice 'n' Fat]

I regularly get over 400 miles per tankfull which means over 55mpg provided you believe that a GSA tank only holds 33 litres which personally I don't

 

[Big_Steve64]

A question! Will cold weather affect mpg?

I think yes.
When you go faster you use more petrol.
In the cold (like now) the roads are always damp, so most would be more cautious. less hard acceleration, gentle braking, maybe lower top speed. So better fuel consumption. I know in really hot weather the volume of petrol expands. So you are getting less for your money at the pumps. Should we ring weights and measure to complain?

I read a great piece in one of the rags a couple of months ago. I can't remember who wrote it, but it was an old skool hack. He said basically stop trying to make your feul go as far as possible and just make the best use of the fuel you use.
I took that to mean, go and do 100 memorable miles at 30mpg rather and 200 boring miles at 60mpg. I get that.

 

[BBB61]

I regularly get over 400 miles per tankfull which means over 55mpg provided you believe that a GSA tank only holds 33 litres which personally I don't

I've got 35 litres in mine a few times. Also got over 400 miles from a tank a number of times too.

 

[RJT_Berlin]

This reminds me of a situation in scotland in 2009...... Me on e ktm, my mate on his gs meet a feW guys at a stoppung point - germans... The guy on the moto morini says to me, so then, what does yours use??? I simply replied petrol!!!!! Might have been a but cynical, but until that question i had never considered it! We rode, we filled up and had some fun...... I know it is expensive, but for me at least it is a hobby, and when i go travelling i dont like at my mpg......

Is always good to know, but the fun comes before the economy imo

 

[Deleted account AWRT]

Can anyone confirm if the new engines will be less economical on fuel as my 07 and 09 plate GSA's both did over 300 miles. This one seems to struggle to get the same fuel economy.

 

[Lighty]

A question! Will cold weather affect mpg?

Using the heated grips will affect your fuel consumption by quite a bit. I would guess at least 1 or 2 mpg.

 

[trainman]

A question! Will cold weather affect mpg?

cold air is more dense and gives more oxygen by volume, most modern cars take the air from the front grill or near a headlight for this reason, in the old days air was sucked striaght from the top of the engine, nice and hot!

i believe some BMW R engine modders fit different air inlet tubes to help performance though am not sure if this is to aid cold air or just improve volume

 

[JJH]

Maby a intercooler JJH

 

[chesuk]

Check your sums with Big_Steve64

My 'sums' are fine - also spot on with the RID

 

[chesuk]

I've got 35 litres in mine a few times. Also got over 400 miles from a tank a number of times too.

Jusus! How do you guys ride? I have a red light at 250 miles (needs about 29 litres to fill it at that point)

 

[Spike]

also to remember a new engine will not get the same mpg till it loosens off a little,

spike

 

[BBB61]

Jusus! How do you guys ride? I have a red light at 250 miles (needs about 29 litres to fill it at that point)

Obviously not as hard as you Panniers are not fitted to the bike apart from when I need them and I tend to keep it down to 70-75 on motorways. As soon as you go above that level then the economy plummets. I have seen mine drop to 300-320 miles when cracking on.