Changed the supercharger oil today
#1
Changed the supercharger oil today
Finally changed the supercharger oil today on my 2005 XJR.
Job took 2 hours with the first hour spent on fishing out the allen wrench that I dropped into the engine block alley so the real oil change procedure only took me 1 hour max.
New oil is clear white like thick water and the used oil you'll see in the picture.
Managed to extract about 6 Fluid Oz. from the supercharger and I have 2 4oz. bottle of the new oil so I used about 1.5oz. new oil to flush/aerated/clean the supercharger and the oil came out pretty brown too.
Pick up about average of 2mpg and stronger and smoother acceleration on the highway mpg.
Job took 2 hours with the first hour spent on fishing out the allen wrench that I dropped into the engine block alley so the real oil change procedure only took me 1 hour max.
New oil is clear white like thick water and the used oil you'll see in the picture.
Managed to extract about 6 Fluid Oz. from the supercharger and I have 2 4oz. bottle of the new oil so I used about 1.5oz. new oil to flush/aerated/clean the supercharger and the oil came out pretty brown too.
Pick up about average of 2mpg and stronger and smoother acceleration on the highway mpg.
#2
I was lucky and didn't drop mine but I did break a balance tube (brittle with age) for the intercooler. Mine came out pure black with metal dust in it (I used a magnet to test). The blower seemed happier and the car seemed to rev easier. Kind of like when you fill low tire pressure and the car pulls better. I didn't do the flush after draining but plan to do it again in spring. Once you know how it's too easy not to.
The dealer wouldn't touch it, as Jaguar used "lifetime" in service wording. I've talked to owners who had no interest in changing it, even after I showed them my sample I saved, as the dealer said it wasn't required. Clear gear oil turning black could only have been from over cooking. I can't imagine metal dust being any good either.
The dealer wouldn't touch it, as Jaguar used "lifetime" in service wording. I've talked to owners who had no interest in changing it, even after I showed them my sample I saved, as the dealer said it wasn't required. Clear gear oil turning black could only have been from over cooking. I can't imagine metal dust being any good either.
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There is also the point that there is only one way to check the level. Once you've gone that far, unless it has been done recently, you might as well just change it.
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Thanks for the picture in your post Casper, I just changed my SC fluid today and it was much simpler than I thought it would be!
Didn't have to remove everything, just used a bungee cord to move the coolant hoses out of the way while I opened the filler hole and used a syringe with 1/8 tubing to remove about 6oz of old oil out, then filled with 2 new bottles (4oz each) of GM AC Delco supercharger oil ($7 each from parts.com). Will add the SC fluid change to my regular maintenance.
Didn't have to remove everything, just used a bungee cord to move the coolant hoses out of the way while I opened the filler hole and used a syringe with 1/8 tubing to remove about 6oz of old oil out, then filled with 2 new bottles (4oz each) of GM AC Delco supercharger oil ($7 each from parts.com). Will add the SC fluid change to my regular maintenance.
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Flexible small-bore silicone tube is available from hydraulics suppliers, but I don't know if it would be small enough.
edit
I think it might be this stuff available from aircraft engineering supply places
http://proviationshop.co.uk/shop/art...d%3DBP-2197%26
BP synthetic turbine oil
though there do appear to be a few grades.
Last edited by PigletJohn; 07-08-2013 at 05:23 PM.