Chevrolet Cruze Forums banner
1 - 5 of 5 Posts

·
Registered
Joined
·
178 Posts
Discussion Starter · #1 ·
For those who may be interest here are the results of the first and second oil analysis taken for my Cruze.
Both samples were taken using a special pump through the dipstick. The oil both samples were taken from is still in use.
For those who might not know what this information means this is a good website to help you out. Engine Oil Analysis - Bob is the Oil Guy

2011 LTZ
Mobil 1 5W-30
No make up oil added

12/4/111/8/11
OLM53%34%
Miles on oil5,0007,075
Miles on engine10,00012,075
ALUMINUM610
CHROMIUM01
IRON1522
COPPER1416
LEAD00
TIN00
MOLYBDENUM6175
NICKEL01
MANGANESE11
SILVER00
TITANIUM00
POTASSIUM822
BORON4235
SILICON811
SODIUM6478
CALCIUM11151219
MAGNESIUM627680
PHOSPHORUS594694
ZINC633728
BARIUM11
SUS Viscosity @ 210°F57.256.4
cSt Viscosity @ 100°C9.439.19
Flashpoint in °F415375
Fuel %<0.5<0.5
Antifreeze %0.00.0
Water %0.00.0
Insolubles %0.20.2
TBN3.63.2
TAN5.44.8

Normally I have to travel for work so this car sees very little city driving and 95% of the miles are 3+ hr drives. This is what happened during the first sample. Over the last month I have not been traveling much so the miles put on since the first sample have consisted of more "city" driving. Maybe around a 50/50 ratio with at least half of the city miles being short 1-2 mile runs. I haven't yet decided when I am going to take the next sample. Probably in 1,500-2,000 miles.
 

·
Registered
Joined
·
178 Posts
Discussion Starter · #3 ·
Great reports! Your going to make it to 0% on the OLM and still be good....
Seeing that the TBN barely dropped from the previous sample and is still strong at 3.2 definitely gave me confidence in taking the car up to a 10k oil change interval with this oil. Since I have a couple free oil changes from the dealer I am planning on running and testing the ACDelco oil when I change this oil.

I don't like seeing sodium and potassium showing up especially when they went up from the previous sample. I will have to see how they trend over time.
 
1 - 5 of 5 Posts
Top