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SkyActiv Oil Analysis Thread

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg
Contributor
:
Plano, Texas, USA
Went back and looked at my reports' potassium levels out of curiosity. 2 times ago it showed 2, and this last time 0! Phew! Currently at 120,000 miles on our CX-5, probably will be needing an oil change again soon.
I believe the coolant leak issue usually would be happening on the 2.5T after several years of service life, not on our 2.5L.
 
Ignorance is Bliss!

Whole life spent out in the country doing oil changes, no gloves and no oil testing.

2nd gen Ford mustang 302-used- slapped whatever cheapest oil and filter could find at Kmart or the local auto shop. Put several more years on an already used engine and high mileage.. no engine problems when sold it.

Toyota Corolla - 11 years running. Slapped whatever oil recommended by Toyota or Pennzoil with Napa and Fram filters. Only replaced valve cover gasket. Engine was clean as a whistle. No other engine problems when sold it at 200k + miles.

Mercury mariner- 15 years running. Ford motocraft oil or Valvoline oil with napa filters. Over 200k + miles. Frame rusted beyond repair while engine still good/running.

Also owned used chevy and vw for short times.
No engine problems.

The main thing the above vehicles all had in common was regular interval oil changes.

Now I gotta worry about my Mazda engine blowing up, using the right oil, getting oil test report, getting engine fixed under warranty and after reading all your UOA reports, definitely gotta be and gonna be wearing gloves during oil changes.

Used to wonder why the jiffy lube guys had gloves. After seeing all the metals and chemicals in those reports, we should be wearing nuclear hazmat suits.

Lessons learned:

1. Wear Gloves
2. Test Oil - which also provides record of your oil change for warranty proof.
3. Use a different oil testing place once in awhile to validate the metals percentages and possible engine problems. Hopefully to help with warranty claim and prevent warranty denials.
4. Wear gloves.
5. Use Mazda or Castrol oil per recommendations.
6. Worry about Mazda engine problems.
7. Wear gloves or have someone else change it.

I just gotta ask, are there really that many people having skyactiv engine problems?
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
Ignorance is Bliss!

Whole life spent out in the country doing oil changes, no gloves and no oil testing.

2nd gen Ford mustang 302-used- slapped whatever cheapest oil and filter could find at Kmart or the local auto shop. Put several more years on an already used engine and high mileage.. no engine problems when sold it.

Toyota Corolla - 11 years running. Slapped whatever oil recommended by Toyota or Pennzoil with Napa and Fram filters. Only replaced valve cover gasket. Engine was clean as a whistle. No other engine problems when sold it at 200k + miles.

Mercury mariner- 15 years running. Ford motocraft oil or Valvoline oil with napa filters. Over 200k + miles. Frame rusted beyond repair while engine still good/running.

Also owned used chevy and vw for short times.
No engine problems.

The main thing the above vehicles all had in common was regular interval oil changes.

Now I gotta worry about my Mazda engine blowing up, using the right oil, getting oil test report, getting engine fixed under warranty and after reading all your UOA reports, definitely gotta be and gonna be wearing gloves during oil changes.

Used to wonder why the jiffy lube guys had gloves. After seeing all the metals and chemicals in those reports, we should be wearing nuclear hazmat suits.

Lessons learned:

1. Wear Gloves
2. Test Oil - which also provides record of your oil change for warranty proof.
3. Use a different oil testing place once in awhile to validate the metals percentages and possible engine problems. Hopefully to help with warranty claim and prevent warranty denials.
4. Wear gloves.
5. Use Mazda or Castrol oil per recommendations.
6. Worry about Mazda engine problems.
7. Wear gloves or have someone else change it.

I just gotta ask, are there really that many people having skyactiv engine problems?

Ignorance is bliss indeed. If online forums were around back then, you might have learned these "lessons" much, much sooner. I think that in the pursuit of improving fuel economy and reducing emissions, engines are smaller to reduce weight, and tolerances are much tighter than they used to be, which means there is much lower margin of error.

All of the things listed in your previous post aren't "required". UoAs can help to determine an oil change interval, or help to diagnose a suspected problem, but they aren't really necessary otherwise. The first UoA I did was just to satisfy my own curiosity. You can use any oil that meets Mazda's minimum requirements for that particular engine/region.

Keep in mind that you're on an online forum. Many people join forums when they have issues to report, when they need help with something, or when they just want to complain. You'll never hear from those who are happy with their engines because there's nothing to report. Our community also only represents a small portion of owners.
 
Ignorance is bliss indeed. If online forums were around back then, you might have learned these "lessons" much, much sooner. I think that in the pursuit of improving fuel economy and reducing emissions, engines are smaller to reduce weight, and tolerances are much tighter than they used to be, which means there is much lower margin of error.

All of the things listed in your previous post aren't "required". UoAs can help to determine an oil change interval, or help to diagnose a suspected problem, but they aren't really necessary otherwise. The first UoA I did was just to satisfy my own curiosity. You can use any oil that meets Mazda's minimum requirements for that particular engine/region.

Keep in mind that you're on an online forum. Many people join forums when they have issues to report, when they need help with something, or when they just want to complain. You'll never hear from those who are happy with their engines because there's nothing to report. Our community also only represents a small portion of owners.
Thanks sm1ke. Am learning a lot. Although was being partly sarcastic, was also serious. The UoA seems like a great idea, even if done occasionally.

All the same, after seeing more mechanics wearing gloves nowadays, and as long as the engine is in warranty period, still gonna

1. Start using gloves
2. Oil test at least once per year til out of warranty.
And test every oil change during last year of warranty.
3. Change oil at recommended 7500 miles. For me that's about 2-3 times per year.
4. Use recommended Castrol 0w-20 oil. The Mazda oil is just too expensive.
5. Once out of warranty, will probably switch to Valvoline high mileage at 10 k intervals.
 
Old engine people just used to dump more oil in ad it got burned. Remember the days when driving around with extra oil in the trunk and checking the oil level at gas station was normal ?

I am sure you would be surprised by the horrendous results an oil analysis would provide on all the engine you mentioned above. Yet they still ran.

The mazda engine is the same, stick to the right grade of oil and change the oil regularly and it will be fine. People on the forum are worried about the potential coolant leak issue, which can potentially be identified through an oil analysis, but the type of oil and frequency of oil changes has nothing to do with it. Don’t worry about it.

The oil analysis is just an “additional” way to get a status of how well the engine is. It is fun to do and geek about, and can show early signs of problems, but that’s it.
 
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2014 CX-5 Touring
You don't really HAVE to wear gloves if you don't want to. Those guys who do many tens of oil changes a day, yeah it's probably a good idea. But for those of us who do it once or twice a year, it's not really a big deal. I wear gloves to protect my hands when working on a hot engine, but that's really the only reason. Chemicals don't magically pass through your skin immediately. Wash hands thoroughly after doing the job and you'll be fine.

I've started doing UoA's mainly just to monitor engine wear, especially with my Integra having over 375,000 miles, plus my Miata engine being non-original and unknown service history before 2 years ago. And of course the CX5, just to ensure that 8,000 mile OCI's are still working well for the car.