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Supertech Full Synthetic 75w-90 any good? #5372604 03/10/20 03:25 PM
Joined: Sep 2005
Posts: 794
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Fordiesel69 Offline OP
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Posts: 794
Cant fin a recent discussion on this but is this fluid any good? I always drain the cake batter factory 75w-140 from the police cars and put the thinner stuff in to save fuel economy. Never an issue but I always use valvoline or mobil. The price is so attractive I want to try it........


99' Crown Vic Police - SAP (P71)
00' Crown Vic Police - SAP (P71)
08' Crown Vics Police - SAP(P71's) (total of 3 garage queens)
13' Taurus Police
14' Fusion S Base
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5372607 03/10/20 03:29 PM
Joined: Nov 2009
Posts: 1,177
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nwjones18 Offline
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I've actually been meaning to ask the same question.. Some discussion on here about the older semi-synthetic version but none on the full synthetic. I can tell you I've got it in the rear end of my Mother's S-10, and I just finished putting it in the front/rear axle and transfer case in my Samurai. I've got no complaints so far. The price is right at under $7 a qt and its frequently sold out at the walmarts around here.


2016 Ram 1500 5.7 Hemi 30k QSUD 5w-20 Mopar filter
2008 Honda CRV 125K QSUD 5w-20 Fram ultra
2007 Mazda 3 2.3 130k 5w-30 syn-blend Denso filter
1988 F-150. 4.9 I6 251k. 10w-40 QSHM Motorcraft FL1A

Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5372614 03/10/20 03:34 PM
Joined: Oct 2009
Posts: 6,102
JohnnyJohnson Offline
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Posts: 6,102
Probably as good as OEM at half the cost.


2004 Corolla 139577
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 77060
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5372616 03/10/20 03:37 PM
Joined: Feb 2009
Posts: 2,364
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krismoriah72 Offline
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Posts: 2,364
It lists SAE J2360 "The king of gear oil specifications"

https://www.lubrizoladditives360.com/sae-j2360-standard/


The only other attractive priced one that ive found is Mystik at Rural King its $1 cheaper but is semi syn.. It lists SAE J2360 as well


https://www.ruralking.com/citgo-mystik-jt7-synbnd-75w90-12-1qt-663745002017

Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5372640 03/10/20 03:53 PM
Joined: Jul 2012
Posts: 486
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khittner Offline
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Posts: 486
I'm currently running SuperTech 75w-90 in my 2WD '95 Dakota's 5-speed manual transmission and final drives, and the has about 8K miles on it. 238K miles on the truck. I don't notice any performance difference between the SuperTech, and the Amsoil Severe Gear and Mobil 1 iterations that preceded it.

Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5372924 03/10/20 08:47 PM
Joined: Aug 2003
Posts: 12,442
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JTK Offline
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Posts: 12,442
I hope so!

I've run it in a bunch of rear diffs, T-case/PTUs over the years. Domestic and otherwise.


2019 Nissan Pathfinder SV
2017 Ram 1500 4x4, 3.6L.
2015 Nissan Versa 1.6 S
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5374521 03/12/20 01:24 PM
Joined: Sep 2005
Posts: 794
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Fordiesel69 Offline OP
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Well I used it last night. It was a lot more clear color than some other brands, and in my opinion flowed better thru the hand pump. Hope it is good! It sure was the best price!.


99' Crown Vic Police - SAP (P71)
00' Crown Vic Police - SAP (P71)
08' Crown Vics Police - SAP(P71's) (total of 3 garage queens)
13' Taurus Police
14' Fusion S Base
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5374727 03/12/20 04:44 PM
Joined: Aug 2011
Posts: 282
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dawgn86 Offline
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Posts: 282
I ran it in a Nissan Pathfinder for years without any problems. I currently have it in my 2013 Tacoma.


2019 Acura MDX
2019 Ford F150
2007 Acura MDX
2016 Volvo XC90
2013 Toyota Tacoma PreRunner
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5375427 03/13/20 11:17 AM
Joined: Oct 2016
Posts: 415
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ZebRuaj Offline
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Posts: 415
I run it in everything. My personal vehicles: Tundra, 4Runner, Rav4 and anyone else's who comes thru my garage and doesn't have a favorite brand flavor.


~I fix stuff.
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5376322 03/14/20 03:50 PM
Joined: Apr 2014
Posts: 1,652
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Delta Offline
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Joined: Apr 2014
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Just put some in my Tacoma after the rear bearing change and have no complaints really. I suspect it will perform fine under my conditions. This summer it will go in the front differential. I did have trouble finding it locally though; I bought 3 quarts a couple weeks again and had a helluva time finding the last quart for the final drain/fill. Walmart has free 2 day shipping so next time I'll just order it online.


'17 VW GTI 2.0T - 6MT - 20K - Edge 0w40
'15 Camry SE - 2.5 - 26K - PP 0w20
'09 Tacoma TRD Offroad 4x4 - 4.0 - 139K - RGT 5w30
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5376691 03/15/20 07:27 AM
Joined: Oct 2004
Posts: 4,000
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dwcopple Offline
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Amazon sells a full syn 75w90 by UltraLub for $7.99/qt


2017 RAM Big Horn 4x4 3.6L V6
2011 Chrysler 200 Limited 3.6L V6
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5376699 03/15/20 07:36 AM
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Posts: 43,698
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JHZR2 Offline
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IME it can be hard to find. But I have no concerns.

Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5379827 03/18/20 07:19 PM
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Mr_Joe Offline
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I just did a change in a 2013 Tundra, the Supertech synthetic. I don’t expect any problems.

Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5380689 03/19/20 07:39 PM
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Posts: 13,911
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Miller88 Offline
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I put it in the transaxle in my Subaru and it shifts great!


18 Forester 2.5I 6M
00 Jeep XJ
01 F-350 4x4 5M
Re: Supertech Full Synthetic 75w-90 any good? [Re: Fordiesel69] #5381947 03/21/20 09:25 AM
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Posts: 4,000
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dwcopple Offline
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Posts: 4,000
[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]
$7.99 shipped each from Amazon


2017 RAM Big Horn 4x4 3.6L V6
2011 Chrysler 200 Limited 3.6L V6
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