How Much Fuel Can Leak In 2 Weeks?

[rondofj]

Ahh so basically I just fill up today and realize that my 34 has used around over 19L/100KM, the thirsty bastard! It pretty much always used to go 15-16L/100KM everytime and these last two weeks of driving 200KMs, it drinks more - my driving style hasnt changed - I do the occasional 15 second short burst of limiter bashing madness daily when I can, the rest of the driving is normal and relaxed, but spirited when the road is clear...eeeh

Now the issue is I have changed my fuel pump a couple or so months ago and since then I have a small leak in my boot - I have a new fuel tank seal sitting around, just cant be arsed fitting it - its a pain opening that goddamn knurled plastic cap on the fuel tank. I know theres a leak because I can smell fuel in the cabin esp when it is a fuel tank, not empty. But not always, sometimes theres no smell of fuel even though I know I have a lot of gas in the tank.

So the question - can my tank leak THAT much fuel to make my economy go from 15 to 19L/100KM????? If yes, then time to change that seal!

[rondofj]

'esp when it is a fuel tank'... FULL tank my goodness..

[Simon-S14]

fix the leak? shouldnt even have to put it off or think about it

[beemae30]

If it is only the seal it could like a little. From sloshing around a little in the tank.

[rondofj]

thats what I thought - leaking fuel vapor - couldn't leak THAT much to worsen my economy from 15 to 19?!

[GTScotT]

I think its more the change in fuel pressure from the pump than it is the leak, its probably thrown out the tune.

Ah well, stock tune goodness!

[rondofj]

hoping not.....hoping its my crazy right foot for that time...didnt know that tunes can be thrown off like that

[DVS JEZ]

I tuned it after the fuel pump rewire and fuel pump install,

i think its down to your driving lol, ive seen the way you drive Ron haha.

Nistune updated there software and i lost your tune from my laptop but im pretty sure your 02 sensor is on. i might have to have a look next time we meet up.

do the fuel pump seal then recheck

[rondofj]

Oh no u lost my tune, hope u can copy it back from my ecu? I dont think its the tune, its either my driving or the leak

[rondofj]

Yep will do the seal and keep track of my fuel use, btw if the tune was thrown out it wud act a bit differently but it dosent, also jez, before the tune i used to have that 'weld me to the seat' torque between 5500-7000rpm, after tuning i seem to have lost that top end but gained smoothness and better low n mid range power/ torque.. Why is that? Miss that top end now, i didnt say anything then as i thought thats the way it should be or im probably imagining, but now i know for sure that i have lost the top end unfortunately; i take it to the limiter now n then to convince myself that i havent really lost it and hence it drinks more fuel! Ha ha need to assure myself that its still there wheres it gone lol

[The Bogan]

Fix it or the fumes may kill you or if the level of fumes mixes with the air in the right amount your car will explode if a spark is introduced.

Don't be lazy when it comes to safety.

[rondofj]

Ouch more reasons to get my lazy butt working the fuel tank..

[rondofj]

Ouch more reasons to get my lazy butt working the fuel tank..

[DVS JEZ]

Its only been road tuned and i have backed some timing out. I really dont like adding timing on the road. We can run it on the dyno an push harder if u want or wait till u get ur bigger turbo. Up to u matey.

[James_03]

It's like a what, 15 min job to fix?

[rondofj]

nah not 15min, for me more like a 30-45min jobbie haha, I'm a bit grumpy and clumsy when it comes to wrenching and bolting bits and bobs.. And jez I sent u a txt on viber.. cheers

[SargeRX8]

Mine leaked. No more than 200ml fuel for the same reason, busted seal after pump install. Wouldn't really affect fuel economy but I don't know how comfortable you are with a petrol leak... Gasket cost 15 from nissan but 3 weeks to get to me so I ensured never fill a full tank until I fixed it.

[Kinkstaah]

It's a pretty golden rule of cars, any car, that you dont want fuel ANYWHERE other than where you specifically want fuel.. if you dont feel comfortable changing it, get a shop to do it... you just don't want fuel exploding in any incorrect area, nor do you want fumes messing with your head while driving, its a core safety thing that is well worth the uh, 40 minutes it'd take to get it sorted

[rondofj]

Ur right

[DVS JEZ]

Ill do it for u in the morning Ron, please dont have a full tank of fuel when u come up here but. Maximum 3/4 tank if possible.