Know where you are coming from on the price thing, I stopped at Michelwood services on monday and stuck just enough in to get back here and it was nigh on £1.50 a litre.

Luckily I only pay 20% of my motoring costs, the rest of it comes off the bottom line, swings & roundabouts, not good for profit margins but keeps it from the tax man ! or not depending on how you look at it  08 2.7 RRS "S"
Td5 110......very modified
RS 5
Kawasaki ZX12R me, it's quick !

Im trying to work out a method of converting all the horse I have into fuel.... 

I have yet to fill my RRS i only got it about 2 wks ago (been away working to use it) this has crossed my mind whether to use shell v power diesel or normal diesel (shell, tesco, asda) 2.7 tdv6 which has been chipped by LR. I had a high powered nissan skyline gtr and only ever used v power as it was mapped for it, i did try tesco 99ron as it was closer and car ran rough, not had experience with diesels.

Does it really make that much of a difference.?

You may think im being pretty sarcastic with that question. But Its an honest one. 

I tried the Tesco 99 ron stuff... engine threw up the reduced engine performance warning that only cleared after about 8-10 miles of driving (50mph on dual carriageway)... not sure if this was some readjustment by the ECU that cleared it, but I have never used that fuel since.

My S/C always gets super unleaded rather than regular, but not overly fussy where it comes from - supermarkets or main brand fuel stations (I avoid the small franchise stations I have never heard of!)

Siberianfox wrote:

Does it really make that much of a difference.?

You may think im being pretty sarcastic with that question. But Its an honest one.

Siberianfox wrote:

Im trying to work out a method of converting all the horse I have into fuel....

I'm thinking the same due to the amount of Bull surrounding me atm

The quality of fuel does go up and down, depending on age & storage etc, diesel is prone to bugs and diseases as well !
With the 110 which has been chipped to within an inch of exploding and variable boosted I had to put nasty stuff in it as there was nothing else around for miles and it ran like a lump of poo, missing and coughing, got red hot etc, got that crap out of it and within 2 miles it was better.

With me bike which has got a Dynojet Power Commander on it I cant run it at it's optimum settings on the ECU due to detonation and temperature problems but put nice petrol in it + a bit of octane boost and it runs like a Swiss watch albeit a very noisy watch mind. When it was originally programmed on the rolling road with decent fuel it was making a pant filling 200.2 BHP at the rear wheel and on full chat with the cam verniers set right looks like it's got an after burner with a foot long blue flame coming out the exhaust....... 08 2.7 RRS "S"
Td5 110......very modified
RS 5
Kawasaki ZX12R me, it's quick !