Recent Topics
Bathroom fans - more than noisemakers!
by sciphi
Today at 02:45 PM
Trouble Ariens Deluxe 24 Snow Blower
by Astro_Guy
Today at 02:28 PM
My humble oil filter cutter
by koffy
Today at 02:17 PM
Autozone oil sale started already?
by Vlad_the_Russian
Today at 01:22 PM
Sold my Dodge Ram 2500 with Cummins diesel
by Donald
Today at 12:33 PM
Open House at NAPA in Grand Rapids
by anl0109
Today at 12:04 PM
Do You Shake?
by THafeez
Today at 11:21 AM
DI fuel injectors and fuel dilution
by Danh
Today at 11:12 AM
OK to use an SL oil ?
by iExcel
Today at 10:27 AM
10 year anniversary
by DC_Stewart
Today at 10:12 AM
Do I need my radio antenna?
by coopns
Today at 09:58 AM
Getting out of a lease
by Jarlaxle
Today at 09:45 AM
Newest Members
nalby, Norris, Ryno, 0919, Combatwombat69
59176 Registered Users
Who's Online
62 registered (4WD, bmod305, Berny, Astro_Guy, askani79705, 0919, 3 invisible), 1806 Guests and 17 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
59176 Members
66 Forums
254879 Topics
4186256 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#2339805 - 08/07/11 01:15 AM Supertech SYN 75W-90
sm00thpapa Offline


Registered: 07/09/11
Posts: 898
Loc: Spring Hill, FL
Is this a good synthetic gear oil for a 50K diff OCI?
_________________________
16 Sonata Sport
16 Elantra SE
09 FZ6R
04 Ascender
96 Cavalier

Top
#2339865 - 08/07/11 07:44 AM Re: Supertech SYN 75W-90 [Re: sm00thpapa]
Billbert Offline


Registered: 10/09/09
Posts: 281
Loc: California
This change is done so rarely, why not use a top line lube such as Redline or Amsoil?
_________________________
If you think you can, or if you think you can't, You are probably right.

Auto Instructor / ASE Master Tech

Top
#2339936 - 08/07/11 10:08 AM Re: Supertech SYN 75W-90 [Re: sm00thpapa]
yaris0128 Offline


Registered: 07/10/10
Posts: 1231
Loc: Bellingham, WA
Why would you want to go 50k on an ST lube? I've heard a lot of people remark that it's great for a few thousand miles but loses its smoothness quick and your in the same spot you were in before. Its not worth what they want at $11 a quart. You can buy M1 and Valvoline gear oil for $8.99. Screw ST.
_________________________
07 Yaris 65k
95 del Sol 125k
93 Ranger 170k
94 Ninja ZX-6 78k
12 KLX250S 10k

Top
#2350585 - 08/18/11 07:19 PM Re: Supertech SYN 75W-90 [Re: sm00thpapa]
qdeezie Offline


Registered: 08/10/10
Posts: 1242
Loc: Charlotte, NC
Here's my opinion that I posted on a different thread. Also, the ST 75w-90 is a blend unless they recently changed something.

Originally Posted By: qdeezie
For what it's worth, I used the ST semi synthetic 75w-90 and I wasn't impressed. I bought it to flush out my differential before upgrading to full syn and it did well for a couple of months and I thought I had a quality sleeper gear oil on my hands, but when I drained it (less than a year and 10k miles) it looked worse than the gear oil I drained out of my truck with an unknown history. Also, my engine didn't seem to have as much of a load on it when I drained the ST out and put in another gear oil.

I give a thumbs up to ST motor oil and ST coolant, but to their transmission fluid and gear oil, not so much. Maybe their full syn gear oil is better, but I'd rather use an AAP code or just pay the piper and get something that I'm not so skeptical about.

Also, I noticed that there is a Castrol Syntec full syn gear oil out there for a decent price if you're looking for a bargain. I'd definitely try that if they had it in the weight you're looking for.
_________________________
'90 F150 XLT Lariat | PU 5w-30 & RP Filter
'13 Hyundai Elantra Coupe SE | PU 5w-20 & OEM Filter
'03 Ford Focus ZX3 | Conv. Shell 5w-20 & OEM Filter

Top