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spankyjr1
spankyjr1, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 2516
Experience:  I worked on all types of equipment semis,forklifts,farm,ect.
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Is it ok to do 62 mph in 11th dear with 3:55 rears?

Customer Question

Is it ok to do 62 mph in 11th dear with 3:55 rears?
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Customer: replied 1 year ago.
Is it ok to drive 62 mph in 11th direct with 3:55 rears. 13 spd trans.
Expert:  spankyjr1 replied 1 year ago.
What engine do you have and what RPM is engine at while driving like this?
Let me know
Customer: replied 1 year ago.
N14 cummins 1530-1550 rpms
Expert:  spankyjr1 replied 1 year ago.
Thanks for info.
Yes its fine then to run like this, just note fuel mileage may go down slightly,, should not be to bad.
It will not hurt anything else.
For best fuel economy on this engine running between 1400-1450 RPM is the sweet spot for both fuel economy and power.
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Thanks
spanky
Expert:  spankyjr1 replied 1 year ago.
Hi I'm just following up to see if you were satisfied with my answer.
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Thanks
spanky

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