Short Car Journeys — Higher Revs Beneficial?

Car_54

daveyjp said:

[Deleted User] said:

Alanp said:

There is a motoring section, maybe the mods will move it

over revving an engine uses more fuel and creates greater wear when cold, best just to drive smoothly and try not to let the engine labour, or over Rev, it’s all about being in the right gear for the speed limit of the road

The speed limit has nothing to do with it.

So you would happily use 6th gear in a 20mph limit street with a severe gradient?

I don't think anything I wrote suggested that.

The previous poster said "...it’s all about being in the right gear for the speed limit ...", which is nonsense. It is not "all about" the limit, or inded "all about" anything.

The speed limit is just one of the factors to consider when deciding the appropriate speed. In turn, speed is just one of the factors determining the appropriate gear.

oh_really

Drive to the road conditions and with regard to limits.

In terms of higher engine speeds and alternator, the alternator will deliver about 80% of its maximum output from low revs anyway, they are pretty efficient in comparison to dynamos.