What octane rating.?. + 2 more.

Std unleaded most the time, occasional full fat, Putoline TT sport or Rock pp2, sae 80-90.

 

Is there much benefit on a 4t 50 father inlaw reckons he gets better speed from that bp ultimate but ive ran it on standard shell for past few days and noticed no difference at all...

 

<------- Worked in the oil industry for 25 years

@ Mark

Get some synthetic engine oil. a 5W/30 synthetic will make a quite a difference on a cold start by drawing less cranking current to move the oil around and use less energy overall compared to traditional mineral oils.

Mobil 1 or Castrol Syntron 0W/30 or similar would be even better and none of these would sacrifice high temperature performance. The oil SAE and API oil specifications are bascially obsolete and get wierded out by synthetic oils, that's why you get 0W oils that were never foreseen back in the '30s and '40s when these specs were drawn up.

Synthetic oils also degrade less so you can extend the oil drain interval if you want.

My TKR2 will be getting a decent 2T oil such as Rock Oil City 2 Plus fully synthetic and Rock Oil Scoo Gear API GL5 75W/90 fully synethetic gear oil for the final drive. I'm not doing a full rebuild on it, only to cheapskate on the lubricants at the end of the job.

 

bikes all run nicely on standard 95, the brick has to have super 97 with two bottles of octane boost per tank otherwise the greedy shit pinks under full boost woldnt mind if it did more than 15 mpg on a run

 

x9 gets 220-230 miles per tank so that gets used the most for obvious reasons