Amsoil for the rear end question.

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The OE oil is SAE 90. The manual states that if you tow a majority of the time you should change to a synthetic 140. I tow 25% of the time and I live in a cold climate - but when I do tow it's usually in CA or AZ. So what I would really like is something between 90 and 140. The oil change is 4 quarts.
Question - can I mix 2 quarts Amsoil synthetic 90 with 2 quarts 140 and come up with something in between?

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99' Quad 4x4 A/T LB 3. 54 30K Miles.
26' Terry w/slide 7500GVWR
"KISS your truck and it will be forever faithful"

 

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MOST automotive suppliers offer a 80-140 wt. multigrade differential lubricant that will fit your needs...

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Early '91 250, 727 AT, 307 rear... Banks Stinger exhaust, intercooler... US Gear OD... MORE than a match for every new PS Ford encountered so far...

 

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tlippy,
All BS and flame wars aside, the Amsoil Series 2000 75w-90 will be more than adequate! No need to mix any 140 to stiffen it up, it is designed to work that way!

Gene

 

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MGM and TLippy, I just changed the gear oil in both differentials last week, adding Amsoil Series 2000 75W-90. I didn't add any additional friction modifier to the rear differential... and so far the LSD is functioning just about optimally. #ad


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John Treibel
'98. 5 2500 QC 4x4 Sport, Glasstite Vision II, 285 BFG A/Ts on M/T Challengers, Warn 4X Boards, Mopar fender flares & tow hooks, NW Custom s/s-rubber mud flaps, Mag-Hytec diff. cover & trans. pan, Edelbrock IAS shocks, Reese Titan V hitch, SPA gauges (3), Dynamat, '00 Sport grille and headlights/PIAA Super White bulbs, PIAA Dual Sport 900 aux. lights, BD exh. brake and TorqLoc, Amsoil Dual Remote Bypass, Optima Yellow Tops, DD3s/DD Boost Module, Aeroquip AQP braided s/s fuel hoses, Banks High-Ram intake manifold and 14 cm2 turbine housing w/Big Head wastegate actuator, ATS 3-piece exh. man. , Banks 4" dia. s/s exh. sys. , BD V10/Cummins hybrid TC & mod. trans. frt. pump, BD VB & PressureLoc, Air Bulldog induction hood (with NACA ducts), plus MANY other trick modifications

Recycle Bin: Prime-Loc fuel filter relocation kit (due to flow restriction), Bosch 275s & VA CPC (upgraded to DD3s... WOW! what a difference!), '00 Dodge/Cummins valve cover (going back to my OE '98. 5 valve cover... tricked out though), VDO Vision gauges (upgraded to $PA gauges. . three of 'em... where's that when you need it? LOL)

 

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QUOTE: "just about optimally. "

Is the glass half full, or half empty!!?? #ad

 

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I try to think of the glass as being half full however, anyone who knows me would bet otherwise... they'd swear I'm more of a glass is half empty kind of guy. I guess I'm too much of a cynic.

... ... but hey, I guess there's always room for improvement. #ad

 

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I've been using Amsoil 75-90 for about three years in my 97. It has about 120,000 on it now. I've changed the 75-90 once, at about 50,000 but it was still as clear as honey at that point. I did have to use a modifier in mine, I've found the smelly stuff from Mopar works the best. Have tried others, but still got the chatter/shudder in just a few thousand miles. The Mopar stuff lasts, but it takes almost two bottles.

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Locomotive Engineer/Red Ram Driver! 97, 2500, Auto,3:54, 2WD, Re-sale Red, Loaded w/Leather, Diamond Tread running boards & box, Bumper guards, "Bull Ring" tie-downs, Front bumper guards, Clearance lights, TST 230 HP kit (slid forward), Missing silencer ring K&N, Combo exhaust temp & boost gauge, Eng. & Trans. temp gauges, 3 Pos. Lock up switch.

 

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The coolest thing about Ser 2000 AmsOil 75W/90 oil is it's cool color <font color=blue> Blue </font>



[This message has been edited by drawson (edited 12-09-2000). ]

 

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I use amsoil Series 2000 75W-140 no additives needed of limited slip.

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95,2500,auto,410;2-WD
Gear Vender Overdrive
tst #5

 

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I use amsoil Series 2000 75W-140 no additives needed of limited slip.

Me too! I figure the 75W-90 is probably great too, but how much mpg am I really giving up? Probably <1%, and I'm using the recommended weight for heavy-duty service. y


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2001 ETH, QC, LWB, 4WD, 3. 54, SPA Pyro & Boost, K&N RE-880 w/foam pre-cleaner, ARE Z-series Cab-high shell, Rear ARB locker, and all kinds of synthetic fluids...

 

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I always thought the glass was twice as big as it needed to be.

 

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Originally posted by drawson:
The coolest thing about Ser 2000 AmsOil 75W/90 oil is it's cool color : <font color=blue>Blue

Hell I just might have to use it based on that fact! I am kinda partial to blue #ad

 

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Amsoil 2000 75W-140 for me.

I tow in temps as high as 110 degrees in the summer. I did have to add 3 bottles of Mopar Limited Slip Additive(skunk pee) after about 10,000 miles to quiet down the clutches on turns. Like some of you guys, I will change it at 50,000 miles. The Mag-Hytec makes checking, adding, and changing the oil easy.

Bill

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Y2K 3500QC, 6 Speed, 4. 10, SLT+, Camper & Tow Pkg. , Westin Chrome Nerf Bars, Mopar Flaps, Reese 20K Hitch, EGT & Boost Gauges, RPM 45 Gallon Aux. Fuel Tank, Highway Products 5th Wheel Toolbox, ECM Controlled PacBrake, Painless Wiring Kit, Mag-Hytec Diff. Cover, Rancho 9000, Air Lift 5000 Air Bags, TOYS: '97 Hitchhiker II 31' 5th Wheel, 2 slideouts, 19,750 GCW, '94 Lance 990 11' 3" Slide-In Camper, Torque-Lift Camper Tiedowns

 

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Dennis, it would seem to me that judging by the color description of your Amsoil gear oil, you are not using the Series 2000. If this assumption is correct, friction modifier is required with the standard Amsoil 75W-90 synthetic. Just wanted to clear this up for other members. [Series 2000 is BLUE in color]

I've had my Series 2000 75W-90 gear oil in for about 300 miles since I changed it... . still no chatter. NO friction modifier was added. #ad


[This message has been edited by John (edited 12-09-2000). ]

 

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After having the Mag-hytec cover on my truck for the last 60,000 miles, I decided to have the gearlube analyzed. The report came back with this remark:"Results of tests performed indicate no corrective action required, oil is suitable for continued use. Resample at next regular interval". I am useing the Series 2000 75W-90 Gearlube, and yes it is "Blue". Truck has 128,800 miles.

As to tlippy's original question, the answer is yes, you would come up with something in between. However, if you use two different kinds of the Amsoil, make sure they are both the Series 2000 gearlubes, ie; 75W-90 and 75W-140. These two oils have the same types of additives in them. The other gearlubes that Amsoil offers have a different additive package totaly!

Wayne

[This message has been edited by amsoilman (edited 12-09-2000). ]

 

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Reading this thread, it would make people think that Amsoil gear oil is the only oil available for your trucks. It is not, and I'll give the readers another option.

Lubrication Engineers has a SAE 90 called Almasol #607 and a synthetic 75w140 called Synolec #9920. Both of these oils have lower wear rates than the Amsoil products. The #607 has shown in wear tests to have 30. 33 times less wear than the Amsoil synthetic 75w90. In fact the #607 showed less wear than the Amsoil 75w140 and the Lubrication Engineers 75w140 synthetic. Based on the tests performed, I believe that the LE #607 is the best oil available for wear reduction. When an oil can reduce wear as much as the LE #607 has, then you should see a temperature reduction and less fuel used. The only reason to use a 75w140 synthetic oil is when the outside air temperature is lower than -10 deg F. or the differential temperature goes above 230 deg F. Other than those high and low temperature limits the LE #607 would be the better choice.

Sincerely, Kevin


[This message has been edited by Oil Man (edited 12-09-2000). ]

 

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Oil Man - I thank you for the information - I really want to purchase LE 607 but it's nowhere to be found. I might just wait till my trailer trip down south and buy some from Mag Hytec.

 

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Oilman,
Again I must inform you that the original question on this thread was:Question - can I mix 2 quarts Amsoil synthetic 90 with 2 quarts 140 and come up with something in between?
Yes there are many different brands of gearlube on the market, but this man specificly was asking a question concerning the Amsoil!
Respectivly,

Wayne

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94'SLT 4X4 AT/White in color. Factory Tow Hooks & Running Boards. Amsoil By-Pass filter, Amsoil Air cleaner,and all fluids are Amsoil. Optima "Red Top" batteries.
BD exhaust Brake, BD Torque Lock, BD Torque Converter, Dr. Performance Stage II Injection Pump. Mag-Hytec Diff Cover,Mag-Hytec Transmission Pan, Isspro Pyro, Boost,Oil temp Gauges mounted in 3 Gauge post mount. One gauge monitors Engine Oil, Trans, Diff. Temps.
Wayne Owen

 

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amsoilman,
Sorry, you are right in stateing his original question. It also seems that you are the only one to answer his question.

Kevin

 

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Kevin,
I believe you offered to buy me lunch on a thread about a month ago. I got sort of caught up with the election and all the snakes down in Florida, and never did get back to it.
Any way, I accept lunch and I have a suggestion on location. How about Muncie Indiana, June 9,10?
That way I can save repeating myself on this forum about how ALL the test numbers are important, not just one or two that look good because it is overloaded with EP additives and get this settled face to face!
Maybe you'll leave as a New AMSOIL Dealer!
So, if you're buyin, I guess I'll be drivin'! #ad


Gene

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1997 Cummins Dodge 4x4 Bombed & Amsoiled. Amsoil Premiere Direct Jobber, Member of: NRA Business Alliance, GLTDR, WANTED: Wrecked Dodges.
www.awdist.com