After trying for an hour or so to post my analysis in a decent manner and having been unsucessful. I will cut the chase and ask my question. After a 7500mi run of PP 5w-30 with excellent results,nitration was taged as severe with a # of 35. The comment was; infrared results indicate beginning lube oxidation. Is this something I need to be concerned about? The car is a nissan sentra with a 2 ltr. motor, 07 with 52,000 miles. The oil retained a tbn of 3.99 with 1% fuel and 0.1 water. Any comments would be appreciated.
Question on UOA results
- Thread starter dalton
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Really simple. Just type your results in. It's the way it should be done. Just copy someone's post who did it correctly and substitute your numbers in.
Nitration and Oxidation numbers without direct comparison to your virgin oil are useless. Don't let anyone tell you any different.
Commenting on the rest of the tiny amount of info would not be all the helpful without knowing your driving style, how long the oil was in the engine etc, so best get your UOA up and tell us some more!
Nitration and Oxidation numbers without direct comparison to your virgin oil are useless. Don't let anyone tell you any different.
Commenting on the rest of the tiny amount of info would not be all the helpful without knowing your driving style, how long the oil was in the engine etc, so best get your UOA up and tell us some more!
I agree with Pablo, just type it in. Best to start a new post with proper heading (vehicle, oil miles, etc) so us nerds can find it in the future if we're looking for something similar.
Thanks!
REDDOG
Thanks!
REDDOG
2007 nissan sentra 2.0 ltr.
7511 mi.; 5 months; sept.-feb.
PP 5w-30
O.A.I.
iron 8
chromium 0
nickel 0
aluminum 1
copper 1
silver 0
vanadium 0
silicon 12
sodium 3
potasium 3
titanium 0
molybdenum 53
antionmy 0
manganese 0
lithum 0
boron 16
magnesium 8
calcium 2850
barium 0
phosphorous 669
zinc 814
fuel 1.0%
soot 0.1%
water 0.1
visc @ 100c 10.6
tbn 3.99
oxidation 20
nitration 35
comments: infrared results indicate beginning lube oxidation.
mostly trips of 10+ mi. Very few short trips.
We had a pretty cold winter; for us, probably still mild by most climates.
aap total grip filter, changed every oil change.
7511 mi.; 5 months; sept.-feb.
PP 5w-30
O.A.I.
iron 8
chromium 0
nickel 0
aluminum 1
copper 1
silver 0
vanadium 0
silicon 12
sodium 3
potasium 3
titanium 0
molybdenum 53
antionmy 0
manganese 0
lithum 0
boron 16
magnesium 8
calcium 2850
barium 0
phosphorous 669
zinc 814
fuel 1.0%
soot 0.1%
water 0.1
visc @ 100c 10.6
tbn 3.99
oxidation 20
nitration 35
comments: infrared results indicate beginning lube oxidation.
mostly trips of 10+ mi. Very few short trips.
We had a pretty cold winter; for us, probably still mild by most climates.
aap total grip filter, changed every oil change.
Those wear #s are almost VOA like. Superb.
Awesome results. This really shows with 10+ mile trips being the primary driving characteristic - very easy on the engine and the oil.
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