Driving 10km slower for gas mileage
OK so i am about to embark on my vacation in to BC, Canada from albera here come the weekend. Looking at gas buddy im looking around 1.40 to 1.52 per liter or close to 6 a gallon for my US people o...
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Don't do 80 in a 100 zone unless conditions really call for it (ie: don't run off a curve because you tried to take it at unsafe speeds). If you can safely do the speed limit, stay fairly close to it. At 80, you are a danger on the road worse than someone doing 130. It's particularly bad on 2lane/2way roads where drivers get frustrated stuck behind a slow poke and take risks to get by you.
Generally, you aren't going to see much difference between 90 and 100 but it depends on the drivetrain. Especially with older trucks with fewer gears somewhere around 80-90 you will find a bad spot where the transmission gearing is either too high or too low (It will vary based on engine, transmission and loading), so the engine races under light load or it lugs under heavy load. In that case, it may be more efficient to pick up the pace by 5-10, so the drivetrain is in a more efficient gearing.
Generally, you aren't going to see much difference between 90 and 100 but it depends on the drivetrain. Especially with older trucks with fewer gears somewhere around 80-90 you will find a bad spot where the transmission gearing is either too high or too low (It will vary based on engine, transmission and loading), so the engine races under light load or it lugs under heavy load. In that case, it may be more efficient to pick up the pace by 5-10, so the drivetrain is in a more efficient gearing.
