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Mixed gas question
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[QUOTE="BSWIFT, post: 1149806, member: 16802"] Just my $.02. First, I'm not about to dispute SAE papers, I'm not qualified. Rich studies this topic and covers it quite well, so well, it goes right over my head. :bang: There is a point when the question of performance loss due to "old" gas becomes very important but for most Spodes it is more of a novelty than a necessity. If I or anyone else is capable of utilizing all of the power in our offroad bikes fuel consistancy is very important. When jetting, consistant fuel quality is important to narrowing down the parameters of the fuel/air ratio to get crisp throttle response. Once the bike is jetted (this is not a one size fits all statement), we will notice fuel inconsistancies with our SOTP dyno and our ear. In the extreme temperature ranges and elevation changes perfomance will be quite noticably different and most likely detrimental to the engine. I've jetted my 05 YZ with pump fuel, 92 octane. My SOTP dyno cannot detect month old gas from 6 month old gas. I have 4 major gasoline refineries within a 30 minute drive and from my work in these facilities, the fuel doesn't stay there long before it is trucked off to the pump. The stores that I purchase fuel from average 2 tankers per day of reg unleaded and the "premium" is topped off every 3-4 days. So how old is the fuel before I get it? No idea. Quite honestly, I wish that my riding performance and enjoyment was so dependent on the consistancy of the fuel that I use but the reality of the matter is that the top pro's (riders and mechanics) need the fresh consistancy of their fuel to maximize their performance. As a Spode, a weekend warrior, I'm happy to have fuel to burn regardless of how old it is. If I could possibly use all of the power that my YZ makes and I needed an edge to be competitive I would be more in the know about the freshness and consistancy of the fuel I used. Don't get me wrong, I like this topic and the information gained is all good. I don't think it will help me out considering my skill level and furthermore don't think it will effect the "grin factor" of pulling a 5th gear wheelie from 1/2 -3/4 throttle with just a twist of the wrist. I really just wish that I could ride often enough to burn all of the fuel that I purchase in a short period of time.:cool: [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Mixed gas question
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