RoyJ

What Mike said about the sweet spot. I suspect that 2000 rpm will be a
bit low and 2500 a bit high for best mileage.

Mike Romain wrote:
> You should play around and see. My engine's 'sweet spot' is between
> 2300 and 2500 rpm. I get the best mileage there with tons of instant
> pull if needed.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> elflan@geocities.com wrote:
>
>>yep, I was back asswards on my gear/rpms and I apologize.
>>
>>I thought I read here somewhere that my straight 6 somehow did better
>>on gas if the rpms were higher. That was what I was trying to question.
>>Now,if you want to flame me for not being a gearhead, go ahead.

RoyJ

What Mike said about the sweet spot. I suspect that 2000 rpm will be a
bit low and 2500 a bit high for best mileage.

Mike Romain wrote:
> You should play around and see. My engine's 'sweet spot' is between
> 2300 and 2500 rpm. I get the best mileage there with tons of instant
> pull if needed.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> elflan@geocities.com wrote:
>
>>yep, I was back asswards on my gear/rpms and I apologize.
>>
>>I thought I read here somewhere that my straight 6 somehow did better
>>on gas if the rpms were higher. That was what I was trying to question.
>>Now,if you want to flame me for not being a gearhead, go ahead.

RoyJ

What Mike said about the sweet spot. I suspect that 2000 rpm will be a
bit low and 2500 a bit high for best mileage.

Mike Romain wrote:
> You should play around and see. My engine's 'sweet spot' is between
> 2300 and 2500 rpm. I get the best mileage there with tons of instant
> pull if needed.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> elflan@geocities.com wrote:
>
>>yep, I was back asswards on my gear/rpms and I apologize.
>>
>>I thought I read here somewhere that my straight 6 somehow did better
>>on gas if the rpms were higher. That was what I was trying to question.
>>Now,if you want to flame me for not being a gearhead, go ahead.

Jeff Strickland

You have that backwards, the higher engine speeds come in the lower gears.
5th gear will spin at 2000 while 4th spins at 2500.




<elflan@geocities.com> wrote in message
news:1116717715.171257.4690@o13g2000cwo.googlegrou ps.com...
> If I'm driving my 99TJ ,(straight 6 cyl), on level interstate and my
> 4th gear RPM's are exactly 2000 rpms at 69-70mph and my 5th gear RPM's
> are exactly 2500 rpm's at 69-70 mph, which gives me better gas mileage?
>

Jeff Strickland

You have that backwards, the higher engine speeds come in the lower gears.
5th gear will spin at 2000 while 4th spins at 2500.




<elflan@geocities.com> wrote in message
news:1116717715.171257.4690@o13g2000cwo.googlegrou ps.com...
> If I'm driving my 99TJ ,(straight 6 cyl), on level interstate and my
> 4th gear RPM's are exactly 2000 rpms at 69-70mph and my 5th gear RPM's
> are exactly 2500 rpm's at 69-70 mph, which gives me better gas mileage?
>

Jeff Strickland

You have that backwards, the higher engine speeds come in the lower gears.
5th gear will spin at 2000 while 4th spins at 2500.




<elflan@geocities.com> wrote in message
news:1116717715.171257.4690@o13g2000cwo.googlegrou ps.com...
> If I'm driving my 99TJ ,(straight 6 cyl), on level interstate and my
> 4th gear RPM's are exactly 2000 rpms at 69-70mph and my 5th gear RPM's
> are exactly 2500 rpm's at 69-70 mph, which gives me better gas mileage?
>

Jeff Strickland

You have that backwards, the higher engine speeds come in the lower gears.
5th gear will spin at 2000 while 4th spins at 2500.




<elflan@geocities.com> wrote in message
news:1116717715.171257.4690@o13g2000cwo.googlegrou ps.com...
> If I'm driving my 99TJ ,(straight 6 cyl), on level interstate and my
> 4th gear RPM's are exactly 2000 rpms at 69-70mph and my 5th gear RPM's
> are exactly 2500 rpm's at 69-70 mph, which gives me better gas mileage?
>