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Jon, Can I use octane booster with pump gas instead of the race gas mix for my 2000 TXT 321.

Thanks, Bruce.

Bruce,

One of the problems with over-the-counter octane boosters is that you are not really sure how the chemical(s) is/are going to affect the real-world octane ratings. A very effective octane booster, MMT (methyl cyclopentandienyl manganese tricarbonyl), is the base product in both 104+ and 104+Super octane boosters. A can of this will treat about 22 gallons (83 litres), raising the Research octane of low-octane unleaded (91-93 RON) by about 3-4 and 4-6 respectively for 104+ and 104+Super. With premium leaded and premium unleaded (95-98 RON), however, this boost effect decreases to 0.5-1 and 1-2 respectively with 104+ and 104+Super. The reduction in booster/pump fuel ratio may not cause the octane rating to progress in a linear manner.

I'm also not sure just how the chemicals in octane boosters affect certain materials in Trials engines like phenolic resin reeds, carb o-rings/floats etc. so I don't recommend the use of over-the-counter octane boosters. I'd opt for a combination of about 30% unleaded race gas to premium pump fuel, just to be sure.

Jon

Professional tuner and 'Trials Competition' writer Jon Stoodley has very kindly stepped up to the plate to answer your questions. If you're having problems, or need some advice just send an email to Jon. If it's something that could be useful to others, we'll post it on the site.
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