Re: Fuel viscosity

Posted by Jed on February 05, 2004 at 09:52:19 from (66.212.143.210):

In Reply to: Fuel viscosity posted by Bill in Orono, MN on February 04, 2004 at 15:19:28:

Gasoline today is usually less viscous than it was 30 years ago. At this time of the year the refiners are making more fuel than gasoline because that is where the market is. More of the heavy end of gasoline is passed off into the diesel range and the gasoline becomes lighter. Also the composition of gasoline has changed greatly in the last 20 years, gasolines are now made for injector systems, not carbs. I don't know why everyone thinks valves have such high lead requirements. Think about it if you will, these tractors were designed to run on kero, which had no lead in it. Whatever lead they got came from a little bit of starting gasoline. What you are probably facing is a carb jet that is eroded, if it is the original, or a poorly made copy of one.

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