Gumout GDI Q&A Answers

click here for the Gumout GDI Q&A answers

Recent Topics
Lawn Mower Oil Filter Prices - WTB Cheap
by tony1679
59 minutes 18 seconds ago
What was your fun / care free car?
by Rick in PA
Today at 04:41 AM
A Funny Memory - Old Friend's Auto Tranny
by Triton_330
Today at 03:51 AM
Buick Century bad fuel pump?
by 901Memphis
Today at 02:14 AM
P4 and Syn power or PYB and VWB question.
by JHogan
Yesterday at 11:22 PM
Check Engine Light P0700 Chevy Cobalt 2010
by Dimitri
Yesterday at 11:14 PM
Unused Fram Ultra XG7317 cut open A50053 date code
by slacktide_bitog
Yesterday at 11:12 PM
5w30 In Honda V-Tech Engines From Dealer
by crazyoildude
Yesterday at 10:48 PM
Lisle Coolant Funnel Kit
by user52165
Yesterday at 10:22 PM
New Horizons
by simple_gifts
Yesterday at 09:53 PM
Jeep Cherokee Love?
by Ramblejam
Yesterday at 09:48 PM
5000 miles or 6 month is typical oil change now ?
by MetalSlug
Yesterday at 09:46 PM
Newest Members
7124, MrMaz, mb32, laenikov, Tabnorup1976
54610 Registered Users
Who's Online
56 registered (2010Civic, alarmguy, ActionJoe, B20z, Bigdaddyeasy, 11 invisible), 810 Guests and 106 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
54610 Members
66 Forums
233930 Topics
3758092 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: 877
Loc: Spring Hill, FL
Is this a good synthetic gear oil for a 50K diff OCI?
_________________________
15 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: 266
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: 1230
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 60k VWB/QSUD/M1 Franken Blend 0/5w-20
95 del Sol 120k Pennz Ultra 5w-30
94 Ninja ZX-6 74k Rotella T 15w-40
12 KLX250S 5k Rotella T 15w-40

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


Registered: 08/10/10
Posts: 1155
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 | VWB NG 5w-20 & OEM Filter

Top