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

83,075

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 of 2 people found this helpful.
Best Answer Mark helpful
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.

83,075

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

83,075

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

83,075

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 of 1 people found this 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

F-150

Looking for a Used F-150 in your area?

CarGurus has 215,823 nationwide F-150 listings starting at $1,295.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,260
  • #2
    dandyoun
    Reputation
    4,630
  • #3
    tennisshoes
    Reputation
    3,250
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,497 Great Deals out of 177,869 listings starting at $699
Used GMC Sierra 1500
1,162 Great Deals out of 66,338 listings starting at $1,750
Used Ford F-250 Super Duty
364 Great Deals out of 48,444 listings starting at $1,899
Used Toyota Tundra
648 Great Deals out of 35,629 listings starting at $2,900
Used Toyota Tacoma
682 Great Deals out of 46,503 listings starting at $2,700
Used Ram 1500
1,294 Great Deals out of 118,606 listings starting at $6,200
Used Ford F-350 Super Duty
350 Great Deals out of 26,539 listings starting at $3,300
Used Ford Mustang
567 Great Deals out of 37,028 listings starting at $2,595
Used Chevrolet Colorado
323 Great Deals out of 37,268 listings starting at $1,995
Used Nissan Titan
243 Great Deals out of 19,612 listings starting at $3,800
Used Chevrolet Silverado 2500HD
344 Great Deals out of 31,000 listings starting at $2,499
Used Chevrolet Tahoe
833 Great Deals out of 42,647 listings starting at $1,980
Used Ford Explorer
1,055 Great Deals out of 71,189 listings starting at $2,100

Used Cars For Sale

2018 Ford F-150 Platinum SuperCrew For Sale
60 listings starting at $51,381
2017 Ford F-150 Platinum SuperCrew For Sale
59 listings starting at $42,249
2016 Ford F-150 Platinum SuperCrew For Sale
30 listings starting at $42,977
2015 Ford F-150 Platinum SuperCrew For Sale
57 listings starting at $34,900
2014 Ford F-150 Platinum SuperCrew For Sale
45 listings starting at $25,875

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.