Im still kind of noob regarding deep knowledge about LFS tools. That said I find it ridiculous that the % of consumption in race is only accurate to one digit.

I just lost a race after being in the lead for more than half of it (75 long laps) BECAUSE my calculations were based on the accuracy of F12.

Thanks LFS team.

On the other hand, some may find it unrealistic to be able to even get such info on the fly in the middle of a race. (If we aren't talking about single seaters or GTR's).

And to be honest, few percentages of extra fuel won't make any difference in 75 laps, unless you're a machine racing against other machines and no one makes any errors.

EDIT: Oh, you were driving a single seater on oval. That pretty much invalids my whole post
Come on, devs! Give the formula merry-go-rounders more digits!

Quote from frokki :

EDIT: Oh, you were driving a single seater on oval. That pretty much invalids my whole post

It should be accurate to +-5 litres in my opinion.

Always take extra fuel. Thats what I do, I don't even notice the 2% or 3% that I added, so i'd rather be safe than sorry.

Quote from mcintyrej :

Always take extra fuel. Thats what I do, I don't even notice the 2% or 3% that I added, so i'd rather be safe than sorry.

I did it; an extra 3%, and entering the pits I set it to 1% extra each stop. Whats the point of the tool if you have to calculate 5% maybe 10% extra?

I've already made a thread on this subject.

With the current precision of 1 decimal place there can be just under 0.1% inaccuracy in the display compared to actual usage (an indicated 1.5% means anything from 1.45-1.5499%). Over a race of 75 laps this means up to just under 7.5% inaccuracy. The safest way (short of just always running with a full tank) is to make your calculations with the maximum possible actual usage for a given indicated usage (i.e. if the indicated usage is 1.5% make your calculations using 1.549%).

When you say you set it to 1% extra each stop I assume you mean you set it to 1% fuel load at the pit stop. The effect of this is to increase the fuel load at the stop up TO 1%, not up BY 1%. If you want to put in an extra 1% you'd have to look at the current fuel load and add 1% to this in the fuel load at pit stop option. It's a little confusing and this has also been discussed before.

The tool is pretty useful, and you should add the extra fuel because a race-track isn't a perfect world. Say 10 laps you trailing somones slipstream, which will conserve you fuel. That will drop the average amount used per lap, which is when you get into the lead thinking you golden the rest of the race... Now you have more air to move thus using more fuel... This is why others recommend carrying a little extra fuel, as I am agreeing with them.

Quote from mcintyrej :

Always take extra fuel. Thats what I do, I don't even notice the 2% or 3% that I added, so i'd rather be safe than sorry.

I`m doing the same, and I really can`t feel any different.
If it`s 10% I would probally notice it, but just small %`s don`t make, or at least don`t feel any different for me.

How do you all calculate the fuel at pit entry? Im running a championship that forces us to enter twice to pits.

Strategies are welcomed too