Toyota Gasoline?, Preference Options

[JoKeRkId613]

I'm about to supercharge my car and know that I will be using premium grade fuel. Is there any Toyota-preferred gasoline company? I did a search and it seems Ferrari recommends Shell. I'm no Ferrari, but I usually fill up at BP (Amoco). I remember seeing a list a while back with a few gas companies that are better for Toyota engines because of something in the gas. Does anyone have that? or does anyone if there is a recommended company by Toyota?

I know this won't make a noticeable difference, but figured since gas prices are pretty mcuh the same around town I might as well fill up at the best place.

Thanks.

[Insanity-74]

Petrol octane ratings and additives, This is is a hugely complicated subject.....Octain rating...this is the petrols ability to resist pre detonation, where the heat of the engine components ignites the petrol before the spark plug does. This can decrease the power of a car because if the petrol ignites before the piston reaches the top of its compression stroke, then the engine is fighting against the detonation of the petrol/increased pressures = reduced power, broken pistons etc etc, So Octain rating can/does improve power.

Petrol companies use different methods to produce the "Octaine rating" in petrol.....Shell does this in there V-Power by making a higher grade of fuel, ie there 99ron petrol is produced as 99ron petrol.

Companies like Greenergie which also makes a 99ron petrol use a different method, they get fuel from either themselves at 95ron or buy it from any other compay at 95ron and add aditives to increase the ron rating synthetically.

Obviously the Shell petrol should be better being origionally designed as a 99ron fuel, but most companies add detergents etc to the fuel to help clean the engine etc...this does nothing to improve power, but can improve overall performance by maintaining the engines internal workiing parts, keeping them cleaner etc.

If you look in Evo mag from late last year they did a fuel comparison.

BP`s 98ron Ultimate came top in both HP gains and torque gains over regular 95 ron petrol. Greenergies 99ron came second and Shells 98 ron came third so I guess its whatever petrol suits your car....Petrol isnt just petrol though there are many differences caused by production techniques, types and percentage of addatives ron ratings etc etc

Now we get 99ron shell and 102 ron BP ultimate plus both of which give a noticable increase in performance over regular 95 ron petrol.

Normal engines (non turbo) do not produce much heat so dont need the pre det resistant properties of high Octain fuel, so you wont need to run anything beyond 95ron...turbo cars should run 98 ron or higher unless mapped to run on the lower grades of petrol.

Note - Petrol in the states is produced usually at a higher grade than elsewhere, also the grade is rated in a different way...RON......PON etc