Comments by "Alan hat" (@alanhat5252) on "JerryRigEverything" channel.

  1.  @freedblowfish3705  there's different grades of both polyurethane & natural rubber, butyl rubber is also common & also has different grades.
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  2. 1:07 so things have improved since the last time I looked? Gas was 25% efficient & Diesel was 35%, (that's why big fleets preferred Diesel).
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