Interesting fuel octain discrepancy I found.

This isn't only a Triumph thing. In a former life I used to work for a Toyota dealership. One thing I found amusing was that the Avalon had 3 trim levels. All 3 had the same exact engine, power numbers etc. Despite that the two lower trim levels called for 87 octane while the XLS said it needed 91. I think it's somewhat arbitrary but for performance engines like on the Rocket I feed it 91 whenever I can and stick to Chevron as they use TOP TIER gas which I've seen recommended regularly for high performance engines.
 
"In Brazil, I stick to 87-octane regular gas (93 RON). Petrobras' premium fuel is 95 octane (102 RON), and likely due to the fueling map, my bike would sputter or stall at idle whenever I used it. Even the Triumph dealer recommended sticking to regular gas
 
mo8414 said:
So I got an E mail back from Triumph. They concluded the online manual that is on their site is the one to go by which means mid grade is what you are supposed to use.
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Ironically, the online service manual lists both 87 and 89 AKI as the minimum.
87 AKI (91 RON) under Fuel System, Engine Management and Exhaust System > Engine Management > Fuel Requirements
89 AKI (95 RON) under Specifications > Fuel System
 
I always run premium. I don't know if its needed, or even if it would run better with 89. I got a BT moto tune, and I havent looked into whether they do a timing advance or not. bottom line. Dunno nutin.
 
rick danger said:
I always run premium. I don't know if its needed, or even if it would run better with 89. I got a BT moto tune, and I havent looked into whether they do a timing advance or not. bottom line. Dunno nutin.
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I run premium due to the BT Moto tune as well since they do ask you what you plan on running. I ran mid grade before the tune.
 
Back in the day working at a gas station, we'd use a wooden stick to measure the fuel in the tanks at shift change and there'd be inches of water showing by floating on top of the fuel. The mid grade [back then] would have the most water in the tank due to being the least used fuel. TBH I believe the age of the station matters more than the ron rating at the pumps. Our area recently got Casey's stations in every town and these new generic stations are giving me the longest tank range between fillups.
 
Water is heavier than fuel.so it sinks to the bottom
 
By the way: a nice cause for different tunes in different parts of the world.

Here in Germany 95 octane is minimum, I normally run it on 102 octane with a small shot of two stroke oil...
 
TURBO200R4 said:
Water is heavier than fuel.so it sinks to the bottom
Click to expand...
so the discoloration floating at top inch or 2 was the fuel and the tanks were half full of water? I'm impressed that the vehicle industry has managed to make cars that run on rain water, and how they made it so flammable.
 
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