Can synthetic fluids really gain me 1+mpg?
#1
Registered User
Thread Starter
Can synthetic fluids really gain me 1+mpg?
Don't usually ask goofy questions like this, but i just changed out the axles, t-case and trans to Amsoil in my Mega. Just routine maint. Haven't had a full tank to calc mileage yet, but have gone thru over a tank since the change (several partial fillups).
Truck currently has 12k mi.
Over head has gone up from 19.6 or so (which is actually about 18-18.5mpg) to 20.6, same driving, same route.
Did I really get an additional mpg by changing out the fluids?
Truck currently has 12k mi.
Over head has gone up from 19.6 or so (which is actually about 18-18.5mpg) to 20.6, same driving, same route.
Did I really get an additional mpg by changing out the fluids?
#3
Registered User
Join Date: Apr 2007
Location: Jourdanton, Texas
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
I have seen some increase in economy, as much as 1.4mpg increase but it doesn't stay like that for long.
I have been using Lucas Long Grain oil and have great results with it. My 07 5.9 get around 23mpg on the highway and 18mpg in the city.
I have been using Lucas Long Grain oil and have great results with it. My 07 5.9 get around 23mpg on the highway and 18mpg in the city.
#4
Registered User
Join Date: Jan 2007
Location: In Oroville, Ca., same house for past 46 yrs!
Posts: 719
Likes: 0
Received 0 Likes
on
0 Posts
Absolutely yes.... and if you enhance some of them with friction modifiers you can gain even more. Rear end, engine, synthetic grease in U-Joints, etc. Add fuel additive and make sure you behave in a way that gains mileage... (like not idling for 15 minutes while it warms up, hot rodding it from stop lights, passing everyone in front you on the freeway just to have them pull up along side at the offramp stop light, etc.) You gain a bunch. work on that exhaust system too, it's worth about 3 mpg saved.
#5
Registered User
Join Date: Aug 2007
Location: Shallowater , TX CSA
Posts: 269
Likes: 0
Received 0 Likes
on
0 Posts
I switched the engine to schaeffer's supreme 9000 and gained .5 to .8 mpg. The diffs and x-fer case didn't make any difference they come with synthetics but I'll do tranny in 7000 more miles.
Trending Topics
#8
Registered User
Thread Starter
Thread
Thread Starter
Forum
Replies
Last Post
snowmanx
3rd Gen Engine and Drivetrain -> 2003-2007
2
09-23-2006 11:04 PM