SuperTech Synthetic 75W-140
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Laughing Gas
Joined: May 2003
Posts: 1,136
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From: Scenic Wisconsin
SuperTech Synthetic 75W-140
I was browsing the automotive department of the local Wally and noticed this sitting on the shelf. It was something over eight bucks a quart.
Anyone have any info on this product (like Flash)? I hope it's decent, because it's a darned good deal!
Anyone have any info on this product (like Flash)? I hope it's decent, because it's a darned good deal!
Postmaster
Joined: Dec 2003
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From: S/C Texas
You couldnt be more right Oppy. I havent been checking. Is it a requirement to run synthetic in newer trucks? I just run Coastal in my differentials...but I change it out at least twice a year because of water crossings on trips. Is this stuff for your diffs or the tranny? Tranny.....thats some big bucks spent there.
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Laughing Gas
Joined: May 2003
Posts: 1,136
Likes: 1
From: Scenic Wisconsin
According to Ford (at least for F250/F350 SRW Super Dutys) the Sterling rear diff requires 75W-140 synthetic gear oil. Duallys and F450 with the Dana 80, they say synthetic 75W-90. F550s can use dino.
They also spec dino in the front (Dana) diffs, but I'm going to use syn there as well.
Trannys - manual and auto - require Mercon ATF, syn not required.
I guess I'd recommend checking your owners manual, but you'll never go wrong using synthetics. IMO, this is the application in which syn has clear advantages and is worth the extra cost.
They also spec dino in the front (Dana) diffs, but I'm going to use syn there as well.
Trannys - manual and auto - require Mercon ATF, syn not required.
I guess I'd recommend checking your owners manual, but you'll never go wrong using synthetics. IMO, this is the application in which syn has clear advantages and is worth the extra cost.
Last edited by oppy; Jun 23, 2004 at 09:27 AM.
Postmaster
Joined: Dec 2003
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From: S/C Texas
Originally Posted by tmorris1
$20 - 25 every few years for differential oil on a $20-30,000 pickup is expensive?
I know what to use in my vehicle. It happens too often.....like Tuesday when I get back from my weekender trip. I just changed the diff fluid out two weeks or so ago, and here I go again. I play in too much water, but its fun.
Last edited by peppy; Jun 23, 2004 at 09:28 PM.
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Joined: Dec 2003
Posts: 2,659
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From: S/C Texas
The vent does go up pretty far. But most the high water I see is salt water, playing at the beach......even a little bit of that stuff inside those gears has just gotta be scary. So like you pointed out ealier..... 
.....its cheaper to replace the fluids than replace the epuipment. I do appreciate the thought anyways.
.....its cheaper to replace the fluids than replace the epuipment. I do appreciate the thought anyways.
