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Changed the oil a little early this time around, meant to go 9K but was under the car changing the CVT fluid so did both at the same time. Driving habits typically do not involve short trips which helps minimize (so the boards say) the fuel dilution issue with these engines. Whether I use Euro...

5 weeks ago, I picked up this 2015 Boxster Base with the 2.7L Flat 6, 33,429 miles on the odometer. Carfax reflects the most recent oil change at 31,745 on 03/29/2024... 14 months and 1,820 miles ago. Here's the UOA on that oil. I will say that I forgot to pull a sample during mid drain and...

As the UOA reflects, there was a touch of PP 5W30 in that fill. Replaced with PUP 5W20... no mixing grades this time around. UOA looks good... I guess I will keep doing what I've been doing.

This has been the highest interval between oil changes with this car and the UOA still is pretty uneventful, except for the slight uptick in Fe. Replaced with 5W30 Euro L once more, which is likely to be the final use of Euro L, only because I've run out. I use either PP or PUP 5W20 in my...

It's been 12 months since the last change, more than 8K miles and it appears that the 5W20 performed well. Si still appears high but is trending in the right direction; I believe it's the sealants not the air filter. Refilled with more of the same.

Almost 5 months since the last change. Since it was approaching the 100K mark, decided to perform a little tune up as well, plugs, PCV, air filter and intake cleaning. Took the oil sample through the dipstick; changed the oil 7 days later. Used CRC GDI IVD spray and followed the instructions to...

Starting to build a nice trend here. Nothing stands out; the way a UOA should be on Toyota engines. I drive mostly highway so I do not expect any changes going forward. But I need to remember to buy the same oils and keep them in the garage. I see the yellow bottles and think I have enough...

About 4 months since the last oil change this time around. At this rate, the Civic will hit the 100K mile mark around October... and it's doing the job we bought it for... providing mostly trouble free miles to my daughter as her first car. No real issue with fuel dilution as reported with...

3rd change here. Looks like it's still a tad high on Cu and Si, but trending in the right direction. We're in South FL, so no need for the recommended 0W-20. Refilled with the same PP 5W-20 and plan on sticking with it and 5K OCIs for a few changes, unless there's a compelling reason to switch...

You know, AFTER purchasing the Civic for my daughter, I found out that these Honda 1.5 turbo engines had fuel dilution issues... I thought this was the end of Honda reliability and I was going to have a major headache on my hand with this car. So I faithfully conducted UOAs, did a little...

Here we go again with another boring post... This fill is mostly PUP 5W20... 5 qts PUP 5W20 and 1.25 qts of PP 0W20. Replaced with PP 5W20. UOA looks good, nothing truly standing out. At this rate I will likely have this car with me for another 10 years.

Approaching High Mileage Oil usage territory. Always liked the Valvoline HM synth blends, maybe I'll give the HM oils a look-see the next time around. Nothing is jumping out at me, looks like the 5W20 Euro L is a good match for this little 1.5 4-cyl turbo. Consumed maybe 1/4 qt or less over the...

Just the 2nd change on this engine. Son is in college and does about 700 miles a month, it would be lower but he comes home every 6 weeks or so, a 350 mile round trip. The engine is still new and there's the infamous overuse of silicon sealant with Subaru, which can contribute to the high Si...

And the saga continues... a pretty boring story though... Yet again, I meant to change at 6K but forgot and ended up changing 3K later. Luckily it does not look like it hurt anything. Iron is just a tad higher than I might have expected. What's different this time does not show in the results...

Recommended OCI is 10K but since I was changing the oil on my daughter's Civic, I figured WTH, I'll swap out the oil in the Lex as well. It appears I could have easily left it in for another 2-3K miles. Replaced with another fill of PP 0W20 but bought a few bottles of PUP 5W20 for all changes...

I meant to change at 6K but my daughter is always on the move, racking up the miles, to the tune of more than 2K per month.... oh to be 23 again... sigh After all the fuss about dilution, and rising oil levels because of fuel in the oil, this little Civic seems to be unfazed at this point...

New addition to the family. Son headed off to college so I decided to get in a first oil change before he left. Didn't have any expectations other than higher than usual wear metals and silicone. Of course this engine has been in the news recently with the potential of excessive RTV clogging the...

The Civic's been getting a little more mileage now, about 2K per month, so I missed my intended interval at 6K. Looks like the 7,500 mile interval is just as boring as a 6K ODI. Although Blackstone suggests a 10K interval, my intention is to stick with 6K. Silicone is still on the high side...

Here's the latest UOA. Although the specs call for 0W20, I've been using 5W30 these last 2 fills. As expected with this engine, there's slight fuel dilution occuring but in most folks' opinion, it's not significant enough to alter anything drastically with the interval. Silicon remains a touch...

Good evening oilheads. Here are my lastest results. This fill of PP 0W20 is the same oil from the last UOA plus another 2,800 miles or so. Took the sample via a fumoto valve after draining about 1.5 qts. Although I did refill with PP 0W20 again, I'm leaning towards a Pennzoil Euro for the next...