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- Sep 28, 2002
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Previous results and here
This is Blackstone's read on my latest round with Bruce's 0w-10 blend. This was after a Fast Track Auto-Rx treatment to remove some moly slug that was plaguing UOA reads. No moly has been in the VOA oil for quite a while, yet about 200ppm was leaching into the UOA. Apparently I had added a full bottle of VSOT when it was en vogue here and didn't heed Molakule's advice and use only 1oz/quart. It didn't even show up much in my two back to back RTS UOA's. Whatever was in Bruce's blend obviously had some disruptive antagonist for this sunk out formation. Terry was uncertain if Auto-Rx would remove it once formed, but it appears that it was effective, at least to some degree.
Discoveries and alterations:
I used an ultrasonic leak detector and found that my apparently intact brake booster hose was leaking. No clamps are used on these hoses on either my wife's 99 or my 02. I installed clamps and the detector indicated a good seal. I changed the relatively clean Wix air filter for an EAA. These were done nearer the end of the 5k. Inconsequential alterations are an electric fan conversion and an inlet thermostat.
Exceptional operational conditions:
I had a road trip to western PA and the jeep had two bouts of sustained 70-85+mph usage on each leg. It's a 6 hour trip one way. No drafting and the mountains, even on the turnpike, were murder. At one point I had to manually shift into 2nd to prevent the jeep from cycling in and out of 2nd. You would reach 65mph in 2nd ..shift into 3rd ..and the incline would then reduce your speed below the threshold for a downshift.
http://img98.imageshack.us/img98/179/d91102.pdf
Blackstone's comments:
GARY: Copper and silicon have improved in the latest sample from your Jeep. Whatever has changed
since November 2008 has had a positive effect on this engine. This oil run is up to 5,100 miles so far, and
we think you can definitely go longer. All wear metals read at or below average, which is a good indication of
normal wearing parts. The flashpoint read at 400ºF, indicating no fuel was present. The insoluble reading
was low at 0.3%, and shows air filtration was working well. We have no problems to report for this Wrangler
Miles on unit: 82,950
Miles on oil: 5100
Air filter: EAA
Oil filter: EaO42
Make up oil: ZERO - samples totalled 16oz.
Al: 3
Cr: 1
Fe:16
Cu: 7
Pb: 2 (first indication of Pb)
TN: 0
Mo:10 (down from nearly 200ppm)
Nk: 1
Po: 2
Bo:29
Si:14
So: 4
Ca:2734
Mg: 11
Ph:1042
Zn:1151
Br: 136
SUS: 43.3
cSt: 5.18
FP: 400F
Fuel: Insol: 0.3
Oil Analizers and Bruce's labs to follow.
Unless Bruce has objections, I'll take this out to 10k and see what it looks like.
As always, comments, views, musings, objections ..all are cheerfully welcome.
This is Blackstone's read on my latest round with Bruce's 0w-10 blend. This was after a Fast Track Auto-Rx treatment to remove some moly slug that was plaguing UOA reads. No moly has been in the VOA oil for quite a while, yet about 200ppm was leaching into the UOA. Apparently I had added a full bottle of VSOT when it was en vogue here and didn't heed Molakule's advice and use only 1oz/quart. It didn't even show up much in my two back to back RTS UOA's. Whatever was in Bruce's blend obviously had some disruptive antagonist for this sunk out formation. Terry was uncertain if Auto-Rx would remove it once formed, but it appears that it was effective, at least to some degree.
Discoveries and alterations:
I used an ultrasonic leak detector and found that my apparently intact brake booster hose was leaking. No clamps are used on these hoses on either my wife's 99 or my 02. I installed clamps and the detector indicated a good seal. I changed the relatively clean Wix air filter for an EAA. These were done nearer the end of the 5k. Inconsequential alterations are an electric fan conversion and an inlet thermostat.
Exceptional operational conditions:
I had a road trip to western PA and the jeep had two bouts of sustained 70-85+mph usage on each leg. It's a 6 hour trip one way. No drafting and the mountains, even on the turnpike, were murder. At one point I had to manually shift into 2nd to prevent the jeep from cycling in and out of 2nd. You would reach 65mph in 2nd ..shift into 3rd ..and the incline would then reduce your speed below the threshold for a downshift.
http://img98.imageshack.us/img98/179/d91102.pdf
Blackstone's comments:
GARY: Copper and silicon have improved in the latest sample from your Jeep. Whatever has changed
since November 2008 has had a positive effect on this engine. This oil run is up to 5,100 miles so far, and
we think you can definitely go longer. All wear metals read at or below average, which is a good indication of
normal wearing parts. The flashpoint read at 400ºF, indicating no fuel was present. The insoluble reading
was low at 0.3%, and shows air filtration was working well. We have no problems to report for this Wrangler
Miles on unit: 82,950
Miles on oil: 5100
Air filter: EAA
Oil filter: EaO42
Make up oil: ZERO - samples totalled 16oz.
Al: 3
Cr: 1
Fe:16
Cu: 7
Pb: 2 (first indication of Pb)
TN: 0
Mo:10 (down from nearly 200ppm)
Nk: 1
Po: 2
Bo:29
Si:14
So: 4
Ca:2734
Mg: 11
Ph:1042
Zn:1151
Br: 136
SUS: 43.3
cSt: 5.18
FP: 400F
Fuel: Insol: 0.3
Oil Analizers and Bruce's labs to follow.
Unless Bruce has objections, I'll take this out to 10k and see what it looks like.
As always, comments, views, musings, objections ..all are cheerfully welcome.
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