changing gear oil

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jlds91389

New Member

Feb 1, 2009

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Orange Tx

May 19, 2009

#1

• May 19, 2009

• #1

so i want to change my rear gear oil just don't know what to use? by that i mean do i need any special addictives or anything like that or can i use just straight oil?

 

2

2000GTdriver

Member

May 27, 2004

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Mile High City, Colorado

May 19, 2009

#2

• May 19, 2009

• #2

SAE 80W-90 GL-5 gear lubricant, plus 4 oz. friction modifier (from Ford, for Trac-Loc)

 

J

jlds91389

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Feb 1, 2009

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Orange Tx

May 19, 2009

#3

• May 19, 2009

• #3

i thought it called for like 75 140 or something like that and fully synthetic

 

ErikTheBeast

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Apr 12, 2006

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Kansas City MO

May 19, 2009

#4

• May 19, 2009

• #4

I used royal purple 75-90 , kinda wish I would of used 75-140. You dont need friction mod with it. If you get friction modifier from ford ask for XL-3.

 

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jlds91389

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Feb 1, 2009

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May 19, 2009

#5

• May 19, 2009

• #5

so do i have to have the friction stuff or not lol im kinda confused

 

Tim2002GT

Founding Member

Apr 10, 2002

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Tulsa, Oklahoma

May 19, 2009

#6

• May 19, 2009

• #6

If you get the Royal Purple brand you will not need to get the friction modifier. I use RP 75w-90 in mine also.

 

Pearl02

Member

Nov 27, 2004

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Kansas City

May 20, 2009

#7

• May 20, 2009

• #7

Before you pull the rear cover, make sure you can get the fill plug out. All it takes is a 3/8 drive extention to remove it. I've had those plugs freeze up and a bitch to get out. Also, do yourself a favor and buy pump to get the oil back in. You can buy a pump that will fit into gear oil bottle. They aren't that expensive. I think I paid 7 or 8 bucks for mine. Pearl02.

 

J

jlds91389

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Feb 1, 2009

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May 20, 2009

#8

• May 20, 2009

• #8

^^ already have one lol. will i notice any difference in my car if i change it?

 

Killa

Active Member

Jul 9, 2007

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49

May 21, 2009

#9

• May 21, 2009

• #9

jlds91389 said:

^^ already have one lol. will i notice any difference in my car if i change it?

Click to expand...

No, but it will make you happy.

 

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Nightstick

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Jul 1, 2007

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May 21, 2009

#10

• May 21, 2009

• #10

KillaGT said:

No, but it will make you happy.

Click to expand...

But seriously, I run 75W140 Mobil 1 with no additional modifier. No clutch chatter to speak of.

 

S

spederman

Member

Apr 13, 2005

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May 22, 2009

#11

• May 22, 2009

• #11

i use royal purple 75/140 and no friction modifier since royal purple already has it. I know a lot of people use 75/90, but the shop i go to said they have seen some pre mature wear on rears using 75/90. Ive been using 75/140 and have no probs.

 

4

4tun8

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May 1, 2006

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Classified

May 22, 2009

#12

• May 22, 2009

• #12

jlds91389 said:

^^ already have one lol. will i notice any difference in my car if i change it?

Click to expand...

You will notice the stench of gear oild (worst smell ever) for days.

 

G

GettinThere

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Jul 29, 2005

553

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19

Central Texas

May 22, 2009

#13

• May 22, 2009

• #13

jlds91389 said:

so i want to change my rear gear oil just don't know what to use? by that i mean do i need any special addictives or anything like that or can i use just straight oil?

Click to expand...

My 2002 owner's manual says to use "Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant", and to fill it to "2.0L (4.25 pints)".

Royal Purple has the friction modifier in it already, but others like Motorcraft require 4 oz of Ford friction modifier.