Recent Topics
YOUR eds red?
by buck91
02/21/17 11:53 PM
K&n open element
by buck91
02/21/17 11:49 PM
Wilson branded alternators? any good?
by Mr_Accord
02/21/17 10:59 PM
2013 Civic low speed hesitation
by Dohc98vteC
02/21/17 10:36 PM
Letís discuss high mileage modern engine life...
by Owenslee
02/21/17 09:40 PM
Sunoco about to join the Top Tier List
by Tdbo
02/21/17 09:34 PM
Blower + mods require higher end oil?
by c5z06
02/21/17 09:01 PM
ball joints
by mobilaltima
02/21/17 08:34 PM
Racor Pff54529
by BrianF
02/21/17 08:24 PM
Semi load of corvettes
by 04SE
02/21/17 08:16 PM
Vinyl repair
by mjoekingz28
02/21/17 08:05 PM
2000 Dodge Caravan won't start and no fuel pressure?
by Rock_Hudstone
02/21/17 08:02 PM
Homemade additive?
by Birdman476
02/21/17 07:42 PM
Castrol Edge Gold 5w30 A3/B4 - any info on this?
by slacktide_bitog
02/21/17 07:40 PM
$38 free for opening my mail (Nielsen TV survey)
by 04SE
02/21/17 07:19 PM
New 2016 Grand Caravan 3.6 question
by otis24
02/21/17 07:09 PM
Autolite spark plugs
by Camprunner
02/21/17 07:08 PM
Castrol/Edge 0W-40 At Walmart
by zmelli
02/21/17 06:44 PM
What is this Law called?
by MolaKule
02/21/17 06:37 PM
Does anybody like Havoline motor oils?
by EscapeVelocity
02/21/17 06:21 PM
Newest Members
Ozlander, JamD, Neiding, akblackfoot, housekpacu
60603 Registered Users
Who's Online
42 registered (bworley, 901Memphis, CKN, buck91, ClutchDisc, Brad_C, 1 invisible), 1067 Guests and 13 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
60603 Members
66 Forums
261399 Topics
4311836 Posts

Max Online: 3590 @ 01/24/17 08:07 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: 292
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: 1235
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.
_________________________
2007 Toyota Yaris 66k
1995 Honda Del Sol 129k
1993 Ford Ranger 171k
1994 Kawasaki Ninja ZX-6 78k
2012 Kawasaki KLX250S 10k

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


Registered: 08/10/10
Posts: 1248
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