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cp3 Thanks for the analysis! Could you tell about the operating conditions, % highway\city, number of months?

engine MR20?

Yes, fuel is Evro 3 or 4 standart. I mean coolant level in Overflow tank, measured in some conditions, before engine start (cold engine). I think its evaporate, but UOA shows potassium. Yes, 1/2 an inch. But before that coolant level seems to be did not change..

received information from the laboratory: Lead=0 ethylene glycol=0 There is coolant in oil or not? potassium =35(VOA=0), sodium=4(VOA=4) How can this be? Ethylene glycol evaporated from oil? Coolant level in the tank decreased by 0.5 inch (5 months) Need help!

I think oil looks normal. Viscosity 100C is little low, but based on other UOA it drops quickly and then hold up well, 40C - i do not trust this value, too low. Flashpoint 431.6 - like a new oil, i think no fuel dilutions. There is an official dealer PC in our region, the price is very...

Yes

My first UOA Oil: Petro-Canada Supreme Synthetic 0W-20 SN/GF5 Car: Nissan Bluebird Sylphy 2004, engine QG15DE 1.5л, 109 hp (sells in Japan market) image total miles: 30312 miles on oil: 2400 crankcase: 2,5l time on oil: 6 months, november-winter-april (max +30, min -20) oil filter: Маhle...

MolaKule thanks for the answer! Can I define by UOA what kind of boron used in oil? (borate esters, boric acid or somthing else)? Oil is SN\GF5 (petro-canada synthetic 0w-20) and it has ~250ppm boron (I get the results of UOA soon) Composition of oil like this...

some information about Borate esters to discuss: "Ashless multi-functional additives are currently being developed as possible alternatives to ZDDP. However, their reactivity with water has limited widespread use. Reaction of the boron-containing additives with water results in the liberation...

High level of Sodium and Potassium - antifreeze leak?

Originally Posted By: CATERHAM Yes it is a bit heavier with is HTHSV of 3.2cP although that is offset during cold starts by it's 177 VI. Were did you get this HTHS information? In TDS no data... sorry for my english

SN is a version of the oil? Originally Posted By: addyguy TBN is the same In SN version TBN is not the same, add pack is different in supreme and in synthetic oils.

Thank you for analysis! Oil Supreme or Supreme Synthetic? PC Supreme 5W30 no dexos 1/HTO-06 specification

avss1, привет от Javen'a I would like to add that in addition to large amounts of dust, acid number is too high, oil is over, need to reduce the change interval. Oxidation , nitration numbers high too

this motorcraft analysis for the Synthetic blend oil, not full Synthetic

If 0-20 and 5-20 has same base stock (group 3 for example), 5-20 better for the cars calls for 5w20. To make the 0-20 oil used more thinner base oil than in the 5-20 oil, and then put in viscosity modifiers in greater numbers than in oil 5-20. As a result, after 3-5 thousand kilometres oil 0-20...

Looks like Honda Synthetic blend 5W20, GF-5, SN http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2127653#Post2127653 Numbers almost identical, manufacturer of both oil - Conoco Phillips?

It seems that there is some mistake. The level of zinc and phosphorus is too small for the European oil with ACEA, no molybdenum (in this oil should be about 300 ppm), the viscosity at 100 degrees is too small. This analysis looks like normal Api SM/gf-4 5-30 oil. p.s.Sorry for my English.