When am I supposed to shift gears up in a diesel car?

When am I supposed to shift gears up in a diesel car?

Postby 02corolla » Sun Aug 26, 2007 7:12 am

I have an Opel Corsa 1.3 CDTI and I'd like to know at how many rpm I should change the gears up so that the engine does not suffer and the intake still stays low. I have heard that I should shift up in such a way, so that the tachometer remains in the maximum torque interval, which for my car is 1750 2500 rpm from the book, and in other words, in the higher gear, the rpm shouldn't drop below 1750 when I shift. Is this true? Thanks in advance and sorry about any typos.
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When am I supposed to shift gears up in a diesel car?

Postby Jankomarko » Sun Aug 26, 2007 7:12 am

I know a person should shift gears to match speed, terrain, and traffic conditions. I attempt to shift gears pretty low on the tachometer but on occasion a person needs to rev the engine a little farther to make the next gear transition smoother. I attempt not to lug any engine but on occasion it happens. Most newer cars have a shift display but you can not generally go by that. If your car has a turbocharger like so many other diesels do then you may want to pay attention to the amount of increase it's . Most turbos have a bit of lag so be sure that you aren't overrevving because it may make it harder to shift into the next gear. A person just has to get to know their car to figure all of the needed details out. Good Luck.
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When am I supposed to shift gears up in a diesel car?

Postby ita2li23ano2 » Sun Aug 26, 2007 7:12 am

Yep, that is pretty much it.

But based on your gearing, if you shift at the top of the power band, up to the next gear, you may end up being below the power band after the shift. In this case you must reimburse. Go a little above the power band before changing.

Anyway you are not going to hurt your car or see a important difference in MPG so do not worry about it too much.

If you want to save gas just drive slow. it is easier on the engine too.
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When am I supposed to shift gears up in a diesel car?

Postby Axures » Sun Aug 26, 2007 7:12 am

After u've driven you are car four a while u'll know just simply by sound, and another tip is speed will tell you too.
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When am I supposed to shift gears up in a diesel car?

Postby Ringmercho » Sun Aug 26, 2007 7:12 am

As a semi retired semi truck driver Progressive changing will most generally benefit a car while accelerating to road speed..However this requires patience and and restraint Because the rat race around you'll generally be pushing at your rear..trying to rush you along. find the rate that matches your needs.
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