engine and drivetrain LUBRICANTS : according to BMW , and for you M1 owners

[c.d.iesel]

here's your Monday Morning Usless information

from your Mudflap Wearing insider :

1.0 General Information On Final Drive Oil

Final Drive oil or hypoid gear lubricant must conform

with the following requirements because of the high

loads which occur on the profiles of the hypoid gear teeth:

— Load carrying capacity.

— Sufficient protection against seizure.

— Good wear protection.

— Optimal friction and temperature behavior.

— Seal compatibility.

— Aging resistance.

These and other properties are already contained

in brand-name hypoid gear lubricants because of

the high content of EP additives (EP = extreme pressure).

Oil Additives

The factory has not approved oil additives for hypoid

gear lubricants. All final drives are designed in such a

manner that they do not require any type of oil additives.

Any type of additives is fundamentally rejected by

the factory. BMW NA cannot accept any liability for

follow-up damage resulting from the use of additives.

2.0 Approved Final Drive Oils For Front And Rear

Axle Final Drives With And Without Limited Slip Or

Viscous Coupling

Mineral based final drive oils are no longer recommended

due to the release of synthetic final drive oils for all vehicles

with or without limited slip differentials.

Limited Slip Differentials

With the introduction of the Z3 roadster a new synthetic

final drive oil for all vehicles with a multi-plate limited-slip

differential has been released. The new BMW final drive

oil SAF-XJ will replace the old final drive oil SAF-XLS.

The SAF-XLS final drive oil is not to be used in the final drive of the Z3 roadster.

Use only the SAF-XJ in the final drive of the Z3 roadster.

Note: If a non-limited slip differential

oil is used in a limited slip differential a whining or chattering sound

can be heard on very tight turns and will eventually result in

a failure of the differential.

Description Quantity Part Number

BMW Synthetic Final Drive Oil 55 liter drum 83 22 1 470 080

(with multi-plate Limited Slip Differential) (SAF-XJ)

E71 X6 xDrive35i and X6 xDrive50i:

Rear Differential with Superposing Gear Units (QMVH)

The rear differential assembly consists of three separate

filler plugs, one in the center for the angle drive with

differential gear and one additional filler plug on each

of the left and right superposing gear units.

Angle drive with differential gear (center filler plug):

PN 83 22 9 407 768 (SAF-XO)

Superposing gear units (two outer filler plugs):

(SAF-CARBON) This fluid is not available at this time

For more information regarding filler plug locations

and operation please refer to the TIS Website

– Technical Training –

ST710 E71 Complete Vehicle Workbook – E71

Chassis Dynamics Workbook.

Motorsport Vehicles:All E46 M3, E60 M5, E63/E64 M6, E85 M roadster, E86 M coupe and E90/E91 and E92 M3 require SAF-XJ Fluid.

Non Limited Slip Differentials

Description Quantity Part Number

BMW Synthetic Final Drive Oil 55 liter drum 83 22 9 407 768

(without multi-plate limited slip differential, (SAF-XO)

or with viscous differential lock (325iX/iXA)

Note: See S.I. Bulletin B 33 01 92 for additional final drive oil info.

3.0 Final Drive Oil For BMW M1 Motorsport Coupe

The final drive of a BMW M1 is integrated into the manual

transmission and the oil supply is accomplished with a

mutual oil filling.

Use reputable brand SAE 80 manual transmission oil conforming with specifications MIL-L-2105 A or API-GL 4. (just like our 02 's ! )

4.0 Oil Change Intervals

Maintenance requirements per the vehicle’s Service

Booklet or the respective Service Maintenance Checklist.

Replacement final drives: same as for new vehicles.

Page 3 of 4

All models as of 9/97 production are factory-filled with

synthetic rear axle oil having a long-life service rating.

No oil changes are required for the life of the vehicle.

5.0 Cars Without Service Indicator (Including BMW M1)

First oil change at 600 miles

Further oil changes at 18,000 miles

Special rule for BMW 530i, 528i (E 12):

1st oil change at 600 miles after final drive replacement

2nd oil change at 4,500 miles after final drive replacement

Further oil changes at 9,000 miles intervals, beginning at 9,000 miles.

6.0 Cars With Service Indicator

Refer to Service Maintenance checklist for respective model year.

Break-In Procedures

Drive the car with changing engine speeds and road speeds

during the first 1,200 miles/2,000 km, but never faster than

2/3rds of maximum speed in a selected gear. Avoid using

full throttle and kick-down positions of the accelerator pedal

during this period.

BMW M3/M5/M6 Up to 1,200 miles max. engine speed 5500 RPM

Generally avoid full-throttle position of the accelerator.

These break-in procedures are, of course, also applicable

to replacement final drives.

7.0 Output Shafts

The joints of output shafts have permanent grease lubrication

and require no servicing.

The amount of joint grease required after repairing is supplied

in the “dust cover repair kit”.

8.0 Wheel Bearings

Ball Bearings E24 (Since 5/82), E28, E30, E31, E32 And All Following

Bearing unit is lubricated for its service life, cannot be disassembled

and does not require subsequent lubrication.

Grooved Ball Bearings E12, E21, E23, E24 Before 5/82 ( attention 02 owners !)Grease type:

Retinax A (former BMW Part No. 81 22 9 407 710)

CRC Part No. SL 3131

9.0 Differential Housing Final Drive Covers And Housing

On 735i/iL, 750iL, M6 and M5 (E28) models, the attaching

bolts are to be installed with Hylogrip/Loctite 270 (green)

thread sealant (former BMW Part No. 81 22 9 400 086).

Würth Part No. 8932700

Loctite Part No. 21438

See S.I. Bulletins B 33 01 89 (1869) and B 33 01 88 (1621).

dat is all - Be Happy .

[Guest Anonymous]

thanks, as always very informative, interesting and a great read.

[CamB]

Lifetime oil eh?

That would be a lot more reassuring if it came with a lifetime warranty!