Can installing extreme pressure additive in rear end differential cause a problem?

15

Asked by Nov 26, 2016 at 01:02 PM about the 2014 Ford F-150 Platinum SuperCrew

Question type: Maintenance & Repair

I had my F 150 serviced in Sept. The dealer recommended the rear end oil
be changed. The service ticket states "installed 02362: limited slip add /
extreme pressure"
Shortly after the service, I noticed an unusual noise which turned out to be
from the differential gears. The dealer replaced the gears and bearings.
The replacement service ticket does not list "02362: limited slip add /
extreme pressure" as being reinstalled during the repair.

7 Answers

56,765

Friction modifier is essential to the limited slip working properly. I wonder if the dealer forgot to install the gear oil the first time. I use the official Ford additive in my F150 and don't have any problems. I don't know the part number but it is called the Ford Fluid XL-3 Friction Modifier Additive .

2 out of 2 people think this is helpful.
Best Answer
15

Original service performed in Sept lists the following: -01482 Diff Fluid Syn 75W-140 -02632 Limited Slip Add / Extreme Press There is no mention of "XL-3" or anything called "Friction Modifier Additive" After replacing the failed gears the service ticket does include the "XL 3" Additive (no part number provided) along with the following: - 01482 Diff Fluid 75W-140 There is no mention of the 02632 Limited Slip Additive / Extreme Press. being installed after the replacement of the differential gears. I believe you are on to something. Thanks for the reply.

56,765

Not installing the friction modifier should not harm the gears. It would make the differential chatter on tight turns.

56,765

I tried looking up that part number and came up with nothing. What is it exactly?

56,765

The first go around there was no 01482 Diff Fluid 75W-140 added to the diff?

15

The first service ticket does include the 75W-140 but not the XL-3 additive. I drove for about 15K miles until the noise became more of an issue and returned to the dealer for investigation. After inspection, the dealer replaced the diff gears and rear bearings & seals - no questions asked. They provided me a rental while performing the repair and did not charge me a dime.

1 out of 1 people think this is helpful.
15

The original service ticket stated: "installed 02362: limited slip add / extreme pressure" but made no mention of "XL-3" additive. The corrective repair (just completed) included the "XL-3" additive and does not identify the "installed 02362: limited slip add / extreme pressure"

Your Answer

Add photo

Related Questions

F-150

Looking for a Used F-150 in your area?

CarGurus has 208,465 nationwide F-150 listings starting at $1,499.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 7,670
#2 dandyoun
dandyoun
Reputation 4,330
#3 tennisshoes
tennisshoes
Reputation 2,690
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,735 Great Deals out of 168,424 listings starting at $1,800
Used GMC Sierra 1500
807 Great Deals out of 66,570 listings starting at $1,995
Used Ford F-250 Super Duty
342 Great Deals out of 47,460 listings starting at $1,795
Used Toyota Tundra
471 Great Deals out of 33,649 listings starting at $3,500
Used Toyota Tacoma
499 Great Deals out of 39,439 listings starting at $2,900
Used Ram 1500
937 Great Deals out of 114,146 listings starting at $5,992
Used Ford Mustang
371 Great Deals out of 46,937 listings starting at $1,999
Used Nissan Titan
181 Great Deals out of 18,554 listings starting at $3,950
Used Chevrolet Colorado
226 Great Deals out of 23,564 listings starting at $2,200
Used Ford Explorer
805 Great Deals out of 74,600 listings starting at $750
Used Chevrolet Tahoe
570 Great Deals out of 27,373 listings starting at $1,500
Used Jeep Wrangler
276 Great Deals out of 18,635 listings starting at $2,995

Used Cars For Sale

2017 Ford F-150 Platinum SuperCrew For Sale
114 listings starting at $45,785
2016 Ford F-150 Platinum SuperCrew For Sale
130 listings starting at $23,880
2015 Ford F-150 Platinum SuperCrew For Sale
50 listings starting at $27,379
2014 Ford F-150 Platinum SuperCrew For Sale
33 listings starting at $24,981