The info I have indicates that the Reid vapor pressure rating of summer blend gasoline runs 10 psi to 8 psi min. Winter blend measures 14 psi to 16 psi max. The winter blend is more volatile & vaporizes easier to aide starting in cold temps.
Now here’s the question. Does the Reid vapor rating decrease during the warmer months in stored gasoline? Examples would be a 5 gal gas can filled up now for lawn mower use over the next couple of months or a collector car with a full tank of winter blend driven 5-10 miles every 2 weeks over the summer months.
Now here’s the question. Does the Reid vapor rating decrease during the warmer months in stored gasoline? Examples would be a 5 gal gas can filled up now for lawn mower use over the next couple of months or a collector car with a full tank of winter blend driven 5-10 miles every 2 weeks over the summer months.