Synthetic Gear Oil
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Veteran
Joined: Sep 2013
Posts: 475
Likes: 1
From: Idaho
Synthetic Gear Oil
As soon as the weather warms up I will be changing the gear in the front and rear difs. So my question is - is there really any advantage in using synthetic gear oil over just regular gear oil ? Ive heard some people say that they get better gas mileage with the synthetic gear oil, is that really possible ?.
My truck has 167000 miles on it if that makes any difference.
My truck has 167000 miles on it if that makes any difference.
Captain
Joined: Jan 2014
Posts: 551
Likes: 3
From: Alberta, Canada
Yes. Economy is improved.
Plus the life of the oil.
Plus plus plus.
Every heavy truck on the road now comes with Synthetic in the transmission and differentials.
My 99 Kota will be getting a full oil change soon and I'll be switching it over to Synthetic.
My 08 HHR dropped from 8.9L/100 to 8.4L/100 with just an engine oil swap.
I can get to 8.2L/100 if I run premium fuel.
But that .2/L doesn't save me the price difference on regular.
My Kota though sucks fuel like a bitch sucks c$&k and needs all the help it can get in fuel milage.
Plus the life of the oil.
Plus plus plus.
Every heavy truck on the road now comes with Synthetic in the transmission and differentials.
My 99 Kota will be getting a full oil change soon and I'll be switching it over to Synthetic.
My 08 HHR dropped from 8.9L/100 to 8.4L/100 with just an engine oil swap.
I can get to 8.2L/100 if I run premium fuel.
But that .2/L doesn't save me the price difference on regular.
My Kota though sucks fuel like a bitch sucks c$&k and needs all the help it can get in fuel milage.
Veteran
Joined: Dec 2012
Posts: 487
Likes: 1
From: Evans City, PA
This topic actually just came up a few days ago...I'll refer you to this thread before I give my opinion:
https://dodgeforum.com/forum/2nd-gen...erentials.html
My opinion is that using synthetic in the differentials makes no difference in fuel mileage. Using synthetic in the engine may improve fuel mileage but that greatly depends on the vehicle and engine type. Spend your money somewhere else - not much can be done to alter the fuel mileage on these trucks...the best you can do is keep your tune up items fresh and fix that plenum gasket. It is true that all new heavy trucks on the road come with primarily synthetic oils, but these trucks have been specifically designed to run synthetics and have fuel mileage requirements from the evil EPA. 2nd gen rams were designed to run on conventional oils, which is what I use religiously.
I tried synthetic in my engine for a couple oil changes but the engine started to develop a bit of an intermittent tick so I switched back to conventional - tick is gone.
https://dodgeforum.com/forum/2nd-gen...erentials.html
My opinion is that using synthetic in the differentials makes no difference in fuel mileage. Using synthetic in the engine may improve fuel mileage but that greatly depends on the vehicle and engine type. Spend your money somewhere else - not much can be done to alter the fuel mileage on these trucks...the best you can do is keep your tune up items fresh and fix that plenum gasket. It is true that all new heavy trucks on the road come with primarily synthetic oils, but these trucks have been specifically designed to run synthetics and have fuel mileage requirements from the evil EPA. 2nd gen rams were designed to run on conventional oils, which is what I use religiously.
I tried synthetic in my engine for a couple oil changes but the engine started to develop a bit of an intermittent tick so I switched back to conventional - tick is gone.