Recent Topics
Hyundai Elantra manual trans fluid change help
by dja4260
19 minutes 45 seconds ago
My Review of the 1997 Camry
by Nick1994
20 minutes 51 seconds ago
M1 ESP 5W30
by e55amgbenz007
21 minutes 17 seconds ago
"2013" 5.0 Stang oil?
by Camprunner
40 minutes 1 second ago
7,000 miles on oil... change before trip?
by Klutch9
Today at 09:50 PM
Wiggling brake shim
by Klutch9
Today at 09:45 PM
Sensen Struts, talk me into or out of them
by Clubber_Lang
Today at 09:23 PM
Ticks when it needs an oil change!
by Realtech214
Today at 08:43 PM
Mounting transmission cooler
by ARB1977
Today at 08:38 PM
need a rec on oil extractor..
by dblshock
Today at 08:36 PM
Favorite cut of steak?
by Rand
Today at 08:11 PM
Maryland Fried Chicken.
by 123Saab
Today at 08:05 PM
Newest Members
Samial, TomHh, JPowell490, LubeMan52, Powermax
50782 Registered Users
Who's Online
90 registered (901Memphis, asiancivicmaniac, 123Saab, 1kickbuttranger, 2010_FX4, 05LGTLtd, 7 invisible), 1374 Guests and 216 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
50782 Members
64 Forums
216927 Topics
3414709 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: 867
Loc: Spring Hill, FL
Is this a good synthetic gear oil for a 50K diff OCI?
_________________________
14 Elantra Factory fluids and filter
09 FZ6R, K&N 204, SRT 15W-40
04 Ascender, P1, Napa SYN 5W-30
96 Cavalier, PC, Maxlife 10W-30

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


Registered: 10/09/09
Posts: 258
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.

ASE Master Auto Tech (retired)

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


Registered: 07/10/10
Posts: 1214
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 55k Valvoline White Bottle 5w20
95 del Sol 116k Pennz Ultra 5w20
94 Ninja ZX-6 72k Rotella T 15w40
12 KLX250S 3k Rotella T 15w40

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


Registered: 08/10/10
Posts: 840
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 | HDS HM 5w-20 & OEM Filter

Top