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I know the economy topics have been done to death but none of them answer this specific question.

Right so my rb25det has a fuel capacity of 65L with 9.8l/100km

I fill it up to the top and i average about 47 litres when my tank appears empty (on the bottom line)

I get roughly about 400km for about 47litres of fuel it vary's

now i am guessing that there is a large reserve in there or something, but i am not willing to test it out.

Can any shed some light as to why i appear to be emoty after about 47 litres?

Also BP ultimate 98 sucks i get much better economy off Caltex vortex 98

Also BP ultimate 98 sucks i get much better economy off Caltex vortex 98

I 110% AGREE that BP Ultimate f*kn sux!!!!!!!! when it comes to better economy. But i think its cuz BP ultimate are better for performance, thus why it burns easier. :D

Yeah my car chews through BP Ultimate in no time if I'm leadfooted.

But I have driven my GTR quite sedately (the first few days I got it) and managed to get 450km out of one tank (I can fill to just over 50L) , so it's not too bad.

Haven't tried Shell V2 Racing yet, not that I have any petrol stations near my house which offer it.

I had driven to phillip island last night and back to melbourne with one tank. Got back to Melbourne on E, drove to work today, then home, then to the servo, had 464k's on the odo. Filled up (Synergy 8000 Mobil) and it was full on 51 litres. So there was heaps of reserve left. I reckon I could of cracked 500 if I wanted to, not game enough to run empty tho :D

Ev.

The other day i drove my car with the light on to uni, i thought i may as well fill it up on the way back home but decided to park on a hill (cars front facing up hill). I couldent start the car because the fuel went away from the pick up. so after pushing the car around, it started, went stright to the petrol station and filled up. Managed to get 54.4L into it or something like that and had 530km on the clock. I drive a RB20DET r32. i have done 550km on freeway driving but now looking back i was probably on the edge of stoping on the freeway.

Synergy 8000 gets the most k's as well

Bp ultimate lasts the longest in my car, drove to qld and back caltex lasted about 20km before the needle dropped bp needle was on full for a good 100km before the needle moved. Used bp on the way back and only filled up 100L or less for the whole trip back i.e 950km

I know the economy topics have been done to death but none of them answer this specific question.

Right so my rb25det has a fuel capacity of 65L with 9.8l/100km

I fill it up to the top and i average about 47 litres when my tank appears empty (on the bottom line)

I get roughly about 400km for about 47litres of fuel it vary's

now i am guessing that there is a large reserve in there or something, but i am not willing to test it out.

Can any shed some light as to why i appear to be emoty after about 47 litres?

Also BP ultimate 98 sucks i get much better economy off Caltex vortex 98

the reason is, with every late model car they always have a 10-15l reserve in the tank, so when on empty you can

1. still get to a service station and not run out of fuel

2. if you get lost you can get some where that has fuel or phone service.

3. you don't pick up debris in the filter or pump. which you should try not running on empty(i always try and fill up at 1/4 tank where possible)

once its on E you should get about 100-200kms depending on driving.

If you look at the shape of the tank and wher the pump sits in the well,,,, and then look at where the fuel gauge pick up is, you'll notice that the fule gauge only measures the slab block part of the tank, not the well.

The well would hold a considerable reserve, around 10 litres would be my guess.

I can usually get 500km before I have to fill up. Guyra to Gilgandra highway miles, 520km, I put 52.7 litres in. R33 Gtst 18psi and 290+rwkw, but you don't boost much unless overtaking. Who says you can't have [a bit of] performance and economy.

I ran it on E for a while and got 440k's / 58.5L with BP ultimate.

Is there really a difference going to Caltex vortex 98?

I truly believe so, i found i had a bit more power too. I hear that bp are dodgey for mixing other less octane fuels in too. But i have no proof so take out of it what you want.

I get around 450km b4 the the needle hits the bottom of E, but I think I still have around 10L left.

My stock R33 uses 13-14L/100km, thats mainly city driving. The only fuel I have filled the car to full is Vortex 98, since its usually the cheapest RON98 around my area (with 4c off thing).

I originally used caltex vortex until I was told it is actually only 96 RON! I then changed to Shell V-Power and noticed a difference in power and economy. Have never used BP ultimate (4c thing) but heard good about it. I get 430 - 450 kms down to empty (roughly 45 - 47ltrs) out of my R32 RB20DET 4-Door and thats only giving it the occational squirt as I drive it daily and need to save $$ and demerit points (one left due to two 80 in 60 zone busts in one week :) ) Only had it a year now and really impressed with the economy verses power ratio, big thumbs up to nissan!!

Edited by partyboy73

I was using Shell Vpower 98 and was getting about 400km with still 1/4 tank remaining. And I always pump full full tank till it startz clicking. This is for R32 GTR.

Then i switched over to BP Ultimate for the past 2-3 weeks, Im only getting like 150-170km from half a tank. n im like WTF.

Im switchin bak over to Shell 98 lol.

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