98 XJR Diff. Oil hange Proced.
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Joined: May 2009
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From: Novato, CA
98 XJR Diff. Oil hange Proced.
Hey all,
I just bought an XJR and I'm just about done with the routine maintenance stuff. I've changed the oil, flushed coolant, P/S fluid, brake fluid, changed tranny fluid/filter, upgraded secondary timing chain tensioners, replaced the spark plugs and of course all the necessary gaskets and what not. However, upon researching I still don't have any clarification on changing the diff. oil. I see the fill plug but I need to know how to drain it! I've read I can siphon the old fluid out via the fill plug (bottom right hand corner of the diff cover)but my question is,where is the drain plug on this diff? There are so many braces/brackets back there that it's hard to see anything
Thanks in advance...
Oh, almost forgot... Spending $45 a quart for conventional Shell Spirax gear oil at the dealer was out of the question so I have some Redline Full Syn. 80W-140 sitting around the garage. Is this fluid compatible with this diff? Thanks again...
I just bought an XJR and I'm just about done with the routine maintenance stuff. I've changed the oil, flushed coolant, P/S fluid, brake fluid, changed tranny fluid/filter, upgraded secondary timing chain tensioners, replaced the spark plugs and of course all the necessary gaskets and what not. However, upon researching I still don't have any clarification on changing the diff. oil. I see the fill plug but I need to know how to drain it! I've read I can siphon the old fluid out via the fill plug (bottom right hand corner of the diff cover)but my question is,where is the drain plug on this diff? There are so many braces/brackets back there that it's hard to see anything
Thanks in advance...Oh, almost forgot... Spending $45 a quart for conventional Shell Spirax gear oil at the dealer was out of the question so I have some Redline Full Syn. 80W-140 sitting around the garage. Is this fluid compatible with this diff? Thanks again...
Last edited by Usdm-sti-ftw; May 29, 2009 at 02:06 PM.
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Joined: Mar 2009
Posts: 91
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From: Richardson, TX, USA
You've got it--there is no drain plug for the diff. You have to remove the fluid through the fill plug.
As far as the fluid goes, I think the only thing special about the Spirax product is that it's a straight 90-weight, so it's not a multi-viscosity fluid. I would think a standard small-spread 80w-90 isn't very different, and is much easier to find.
TTYL
David
As far as the fluid goes, I think the only thing special about the Spirax product is that it's a straight 90-weight, so it's not a multi-viscosity fluid. I would think a standard small-spread 80w-90 isn't very different, and is much easier to find.
TTYL
David
Last edited by DavidB; Jun 3, 2009 at 12:25 AM.
Thread Starter
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Member
Joined: May 2009
Posts: 75
Likes: 0
From: Novato, CA
You've got it--there is no drain plug for the diff. You have to remove the fluid through the fill plug.
As far as the fluid goes, I think the only thing special about the Spirax product is that it's a straight 90-weight, so it's not a multi-viscosity fluid. I would think a standard small-spread 80w-90 isn't very different, and is much easier to find.
TTYL
David
As far as the fluid goes, I think the only thing special about the Spirax product is that it's a straight 90-weight, so it's not a multi-viscosity fluid. I would think a standard small-spread 80w-90 isn't very different, and is much easier to find.
TTYL
David
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