Hi All,
Can someone help me understand this. Is there a problem?
Thanks
Ray
Comments:
We're thinking the viscosity of this XP9 oil started as a 10W/40,but the viscosity at the oil change
was a bit lower. Some fuel was present so that may have thinned the oil or maybe the oil started thinner.
Either way,it's not a huge concern, just a talking point. The wear metals look pretty good for the most part.
Nickel was present at a slightly elevated level and that might suggest cylinder wear depending on the
cylinder metallurgy,but it's just something to follow-up on for now. Silicon tested high, so check for air
intake leaks.
Can someone help me understand this. Is there a problem?
Thanks
Ray
Comments:
We're thinking the viscosity of this XP9 oil started as a 10W/40,but the viscosity at the oil change
was a bit lower. Some fuel was present so that may have thinned the oil or maybe the oil started thinner.
Either way,it's not a huge concern, just a talking point. The wear metals look pretty good for the most part.
Nickel was present at a slightly elevated level and that might suggest cylinder wear depending on the
cylinder metallurgy,but it's just something to follow-up on for now. Silicon tested high, so check for air
intake leaks.
Code:
OIL TYPE & GRADE: Joe Gibbs XP9 10W/40
MI/HR on Oil 1165
MI/HR on Unit 26710
Universal Averages
ALUMINUM 1 1 7
CHROMIUM 1 1 0
IRON 8 8 9
COPPER 14 14 11
LEAD 3 3 3
TIN 0 1
MOLYBDENUM 1205 1205 209
NICKEL 5 5 1
MANGANESE 0 0 1
SILVER 0 0 0
TITANIUM 0 0 1
POTASSIUM 0 0 2
BORON 39 39 148
SILICON 14 14 6
SODIUM 8 8 7
CALCIUM 469 469 2726
MAGNESIUM 0 0 19
PHOSPHORUS 778 778 969
ZINC 891 891 1046
BARIUM 0 0 0
Values should Be*
SUS Viscosity @ 210 F 64 65-76
cSt Viscosity @100C 11.34 11.6-14.8
Flashpoint in F 350 >385
Fuel 1.8 Antifreeze 0 0
Water % 0 Insolubles % 0.3 CODE]