I get the impression that my RPM'S are above average when cruising on the highway at 65-70 MPH. Or maybe Im just being paranoid? Anyways what are the acceptable RPM range for highway speeds?

 

Looks about right to me

 

 

D2's with the right gearing should be around 2700rpm @ 70mph in top gear

 

Yep at 70-75MPH I'm sitting just over 2,500RPM's. In my 99, 02, and 04.

 

With OG 255/55r16's I was at 2750 at 70... With the current tires it says 2500 at 70. Of course neither the speedo or the odo are correct according to GPS...

You really don't know how fast you are going until you use a few GPS apps on your smart phone or some outside measurement method like timing how long it takes between mile markers on a long straight stretch.

Once you know how fast your are actually going then you can see what the RPM's are at when you are actually driving 70 rather than just when your speedo says you are. Of course this is easier if you pick a long straight highway that will allow you to go 60 mph in one minute... for those that are mathematically challenged.

 

IV same as above when driving it changes at 3000 rpm when pulling my caravan found it hard to get over 60 kph why can anyone help

 

Need more info, and if you're from Kildare, Ireland...l'd assume we're talking diesel? And, l assume you are saying this issue only occurs while towing?

Brian.

 

Thanks for getting back to me .it's a 2.5 diesel and u think it's slow to change all the time . But very bad when I have it hooked up to caravan

 

https://www.aulro.com/afvb/

Might get more info about diesel performance on this site above. More diesel folks in Australia.

Back on topic...

2001 Dll - 265/75-16's ...70 mph...2300 rpm. 75 mph...2500 rpm. Miles per hour verified, not odometer reading.

Brian.