Oil test result using 5w30 for the past 2 oil changes, wear metal looks good, not sure where the higher than normal water content is from, oil was taken after a spirited drive. Also not sure why the base number is so low, maybe i need to submit a fresh oil sample for them to compare against?

2015 v8
~3000miles over ~6 winter months, varied driving conditions but nothing extreme like short trips or track events.

liqui moly molygen 5w30

2 bottles of liqui moly MoS2 added (i have later found this combination is overkill on the moly and is not recommended by liqui moly, i have changed the additive to their ceratec for the current oil change)

 

I'm not an expert, but I suspect the increased wear came from the friction modifiers. Generally as friction goes down, wear increases.

Personally I'd never run pour in oil additives because you can buy a quality oil with the viscosity and additive package you are searching for.

 

There is no increased wear, all non-highlighted values are within normal parameters. Pretty happy with the numbers, gonna get another one done next year.

i came to similar conclusion on the oil additives but figured it wouldn’t hurt to to have a little more slippery stuff in the oil. Wether it really helps or not is another (lengthy) subject and will probably never reach an end.

 

I don't run any additives but I do run 5w30 because it's 107 out right now and I don't feel the oe weight provides enough protection for the conditions here. I noticed on my second drive that the engine was noticeable quieter after the change. Was happy with that but won't get my first Blackstone for another few months.

 

that’s the same reasoning behind my choice, though i didn’t feel any difference after the switch, it might have ran a bit smoother, but it’s probably placebo.

 

I don’t know how much excess water content is concerning. But, I had excess water in my boat’s outboard motor. It was caused by a stuck open thermostat. So, the oil temperature was never getting hot enough to cook off moisture. Could be your thermostat not allowing motor to come up to temperature.

 

You might want to dig around on BITOG. Someone is saying that molygen should not be combined with ceratec.
https://bobistheoilguy.com/forums/th.../#post-5904033

 

Bad things can happend when you throw off the chemistry of your oil with additives, be careful everyone.

 

Yeah, looks like the ceratec that he added to the current OCI has a lot of calcium which can be a contributor to LSPI.
https://www.speediagnostix.com/new-o...lysis/cera-tec

I wonder what the overal PPM rises to once that's diluted into the 7L of oil.

 

Interesting read, there is a chance that i mixed up the 2, but last time i did the research (about 6 months ago, after i already changed the oil and added mos2), i came to the conclusion that molygen already has enough moly so mos2 is not recommended and ceratec can be used for extra protection. Source includes a different post on bitog, liquimoly themselves and fcpeuro.

Well then, no big deal, it seems no additive is probably better, i will change them out soon and send the current oil in for another report.



Also not too concerned about the water content, thermostat was changed last year and oil temp acts normally according to my obd2 gauge, if i had to guess it’s probably from the mityvac, it is a few years old now and been through multiple oil changes including other cars.

 

There is some fuel dilution from GDI, so maybe if you are running E10 that attracted some moisture? I've heard that while most moisture and fuel will cook off from correct oil temperature, but that once they react some with stay in the oil. Just speculating.

 

Everything is 10% ethanol around here, I looked up normal amount of water content and:

“ Any water content above 300 parts per million (0.03 percent water) should be monitored closely. When water content reaches 1,500-2,000 parts per million (0.15-0.2 percent water), there is cause for alarm.”

And mine is like 10 times that, hmmm..

New oil arriving soon, imma send fresh samples in to establish a reference.

 

Checked with their customer service to get all info corrected, once that’s done they already have Virgin oil data so no need to send in fresh sample.



New report is out now, they are conveniently combined with the first report for easy monitoring, water level is back to normal now with the second sample, so i really had that much water in the previous oil, hmmmmm

not sure what to make of other changes in value, i really need to run down this fresh oil with no additives to establish my own baseline, should’ve done it when the car still had 0w20 but it’s what it is.


for reference:
sample 1 = 6 months 3000 winters miles with molygen 5w30 with 2 bottles of mos2

sample 2 = 1 month 500 summer miles with molygen 5w30 with a bottle of ceratec