As there has been some discussion on the use of different fuel grades in the 335i I thought I'd post some dyno graphs up showing the difference in power that is achieved.
Please note this is not a scientific test (IMO all the tests would have to be carried out on the same car and same conditions to be 100% accurate) but provides an excellent illustration. I have taken the highest figure I can find for each category that has been on our dyno. I have added the typical range we have seen for these on our dyno in brackets.
1 - tuned* with Shell V Power 99 (370-390 BHP)
2 - tuned* with 95 RON (340-346 BHP)
3 - standard with Shell V Power 99 (311-330 BHP)
4 - standard with 95 RON (290-302 BHP)
*just a remap on otherwise standard car.
Flywheel Power
Flywheel Torque
I hope you find this useful in making your decision at the pumps
I'm off to secure some sponsorship with Shell.