Other vehicles I have driven cruise 70 mph at about 2,500-2,750 RPM, whereas my 3 at more like 3000 at 65-70 mph. And 75 mph is like 3500, its almost 4000 rpm if I go up to 80.. Does this seem a little high or is it normal for the 3?
currently all the 2.0 and 2.3 5 spd manual tranmissions in the US Mazda 3 share the same ratios - both gear ratios and final drive ratios are the same. The 5spd manual trans is identical on both the 2.0 and 2.3. In some other countries such as Japan they do have a different final drive for the 5spd manual it is 4.388 in the JDM models. The US models have a 4.105 final drive. Again this info only applies to 5 spd manual transmissions.
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