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Xk150 Transmission lube

XK150 Transmission Lube

It's about time to change the gear lube in my '58 XK 150 FHC. Question 1,
What lube is recommended?  Is Redline a suitable lube for an old Jag? Does
anyone have any suggestions? Question 2, How much oil does the
transmission/Overdrive hold? Question3, Do the Tranny and OD drain from
seperate plugs? Question 4, Do they both get filled through the dipstick
hole in the interior? Question 5, I don't have a manual for a XK 150.  Is
one available? Thanks in advance for all the help. The XK Digest is a life
saver! - Brad Bloomquist, '58 XK 150

Straight  W30 non-detergent is the proper oil to use in the 150
transmission and OD - Coinman

Someone told me that you can use gear lube 80/90???? Any thoughts??? - Norm

Hi Mlarsen & all -- DON'T EVER use "gear lube 80/90" -- you'll destroy the
gearbox/overdrive very shortly!  The factory calls for a straight 30w oil
in both -- use this if you don't want problems.  I hope this helps - Larry

As I said earlier, use only a non-detergent straight 30 weight oil in the
150 transmission and OD unit. 80/90 wt is used in the later all-synchro
trannies like in the 65-67 e-types, etc. - Coinman

OIl that is used in motorcycles is formulated with high shear strength to
be used in the motorcycles gear box. This is a non-detergent type oil. Most
motorcycle shops carry 30Wt. oil of this type. - Gene Burda

No don't use it (gear lube 80/90). The hypoid additives in this oil will
attack bronze bushings in your transmition. Use only #30 non detergent oil.
Castrol is still making it. It is used in some older tractors check out
farm supply stores. - Bill, 1955 XK140 ots

No, too heavy for the would probably not matter on the tranny. -
Barry Goldman

does it make a difference if you dont have overdrive?? - Norm Larsen

No, the specification is the same for transmissions without the OD unit. -

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