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This is the message I got back from Wear Check when I asked about the units for nitration and oxidation. It appears these analysis results are useless for this oil? Those readings are in Percentage Allowable (PA). This is essentially a reading of how close the oil is to requiring an oil change...

The lab was Wear Check in Burlington Ontario Canada. I don't know what scale is used for oxidation or nitration, but will find out. Thanks for the recommendations for longer OCI.

This is the first time we have done an analysis on this vehicle - that has 151,000 Km (94,375 miles) It looks OK to my untrained eye - but looking for a more expert opinion. It looks like this oil could have gone much farther - but not sure how much. Any opinions? Thanks Sample Date 18-Aug-08...

Lets try this That doesnt look right either!! The previous link does work if you copy the URL to your browser.

I've attached this link to a spreadsheet showing all my analyses on this vehicle. Hopefully this link works OK. You can see what other oils I've tried.

Originally Posted By: LargeCarManX2 I really think you could get a better grasp of the oils condition using Amsoil's lab. The TBN, Oxid, and Nit do present the case a little clearer for toothslayers such as me. The oil did not thicken or loose viscosity. Low wear and such shows it's working for...

Silicon 22 Potassium 0 Sodium 9.1 Fuel (%) Glycol ---- Water (%) Soot (%) ---- Sulfation 161 Nitration 79 Boron 14 Barium 0 Calcium 2811 Magnesium 134 Molybdenum 5.5 Sodium 9.1 Phosphorus 680 Sulfur 2289 Zinc 814 Visc@40°C ---- Visc@100°C 9.2 Oxidation 79 TAN 3.24 TBN Iron 8.8 Nickel 0...

I've attached a pic of all the oil changes on the MDX for info. last year I had a 25732 Km (15989 miles) OCI using Amsoil 0w30 TSO. Note the Viscocity was high, which likely meant the oil was starting to thicken due to long OCI? For comparison the nitration was 101 vs 125 on the most recent...

I've been on the road and had not been back to this site since I first posted. WOW - I had no idea this post would attrack so many comments and perspectives!!!. I've learned a lot!! To answer some questions: - yes the oil and filter were changed!!! Same oil and filter used. - Yes it was probably...

Originally Posted By: Bulli 23k miles oil change? That is correct

Oil was in service for just over 12 months (in Ontario Canada)and 23,920 miles. Analysis by Wear Check and they stated oil was suitable for further service. Question: Any idea how close I was to end of oil life??? Sample Date 18-Apr-08 Oil Amsoil ASM 0W20 Time on Unit 131132 Km Time on Oil...

This is a VOA on the oil I use in my BMW K1200 LT motorcycle. It is a API SG oil. Analysis done by Wear Check Canada Silicon 5.2 Potassium 0 Sodium 213 Fuel (%) Glycol ---- Water (%) Soot (%) ----- Sulfation ----- Nitration ----- Boron 0.4 Barium 0 Calcium 574 Magnesium 572 Molybdenum 0.1...

I put in Amsoil ASM 0W20 at last oil change so will see how it does

This oil was in the vehicle for 12 months. Wear Check Canada did the analysis and flagged the viscocity as being high. Can anyone offer an opinion on the high viscocity? Is this thickening due to extended time on the oil? Sample Date 29-Mar-07 Oil Amsoil TSO 0W30 (Series 2000) Time on Unit...

My BMW dealer could not find any leak!!! They did a 1 hour pressure test of the cooling system at 2 bar and had zero pressure drop. Got the bike back now, so will carefully monitor the coolant level and wait for results of next UOA.

The BelRay oil is the same oil that I had analyzed previously. The Na was 0.1 at that time - so it is definitely not an additive. Given that BMW coolant has very high Na levels - thanks to the post from Jim 5, it looks pretty conclusively like a coolant leak.

Vehicle: 2006 BMW K1200LT Oil: BelRay EXL 20w50 API SG Oil Filter: stock BMW Oil added: none Additives: none Total mileage: 10977 Km/6860 miles Mileage on oil and filter: 8777 Km/5485 miles Analyzed by: Wear Check Canada Sample Date 05/15/06 06/19/06 Current Time on Unit 896 3095 10977 kms...

Oil: BelRay EXL 20w50 API SG Oil Filter: stock BMW Oil added: none Additives: none Analyzed by: Wear Check Canada Sample Date 05/15/06 06/19/06 Current UOM Time on Unit 896 3095 10977 kms 6860 miles Time on Oil 896 2200 8777 kms 5485 miles Time on Fltr 896 2200 8777 kms Oil Maint. changed...

Had my fluid completely changed today at a Honda Dealer using the Honda Transmission Flushing machine. My Acura dealer did not have a flushing machine!!! I got a really good deal because the Honda Service Tech quoted me $50 Can to do a complete flush including the fluid!! I said "are you sure...

I cut open the filter (K&N-138) and everything looks OK. No debris visible. Looks like the engine is still healthy!! TooSlick: Thanks for the advice. Will get the newer Amsoil when this case is gone.The specs for it look a lot better.