Hi - I’ve got a 2007 Mazda6, 5 speed manual. I shift into 5th at about 42 mph - by the time I’m at 70, it’s about 3200 RPM. I’ve heard this is normal (don’t have to downshift on the highway to pass, at least), but here’s my question - will this wear the engine out way faster than it ought to? Is …

Yep, it’s the 4 cylinder. So does that gearing ratio put more wear and tear on the engine because it’s revving that high on the highway, or does the engine design take that into consideration? I’ve been driving an AT Maxima for ten years that would kick down lower than that. Don’t know too much a…

It’s perfectly normal. And the engine will not wear out prematurely. Today’s smaller engines, with their lower reciprocating masses, shorter strokes, and better balanced components, are very comfortable at those speeds. As a matter of fact, when I was young 100,000 miles was considered the reliable…

For what it’s worth… I have a 2000 Honda Civic. It is a 4 cylinder with a 5 speed manual trasnmission. At 70 MPH in 5th gear I am at about 2800 RPM. I think I hit 3200 RPM around 80 MPH or so. Also I had a 4 cylinder Jetta with an automatic transmission. I don’t remember exactly but the RPMs w…

Thanks, guys - that was what I was hoping. It’s just different than what I’m used to.

3000 RPM at highway speeds

Maintenance/Repairs

FoDaddy September 26, 2008, 1:45pm 2

I’m guessing you have the 4 cylinder model. Since it has a small engine, it needs to operate at higher revs in order to produce sufficent power. Using shorter gearing is a common way for manufactuers to use less powerful engines seem stronger than they really are. Your car was designed that way for a reason.

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3000 RPM at highway speeds

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