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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...

Looks much better than the last UOA. Took the sample using the Blackstone vacuum pump. Plan on running this fill to 10K, it's what Lexus recommends. Any reason I shouldn't?

Getting some history on this engine now. Still a boring UOA so that's a good thing. Silicon - a little high but the air filter has never been changed and the seal is still tight, I doubt any dirt is getting in. But I might still change the air filter, it's been 36K miles and almost 4 years...

30K miles on the odometer. Left the oil in longer than I intended, should have changed in December with about 4K on the oil, but off it went to college with my daughter who only visited a couple of weeks ago. This fill was Penn Plat 0W20... Silicon seems a little on the high side, but nothing...

Okay, here we go... Dealer fill in this 2018 Lexus GS350, I assume to be 0W20 TGMO, in a typically very reliable 3.5L V6 that's been around a long time. 9,574 miles on the oil, but it was in there for 19 months... never left oil in use for such a long period before. As Blackstone states, Iron...

So on my 2002 V8 Toyota with 338K miles, I changed from primarily using Maxlife HM 10W30 to a mix of 5 qts 10W30 PP HM and 1.5 qt 0W20 PP for this oil change. No logic behind this other that a need to get rid of partially used oil jugs laying abut the garage. It's been about 3 months and 900...

Apr 29, 2019, 329, 980 miles - Added a mix of 2 qts 5W30 and 4.5 qts 10W30 for this fill, primarily just to use up some oil laying about the garage. Dec 5, 2019, 334,716 miles - added 1/2 qt 10W30. Jan 26, 2020, 335,614 miles - added 1/2 qt 5W30 PP HM. Jul 25, 2020, 338,022 miles - Oil change...

2017 Civic with 24,000 on the odometer, OCI 4,786 miles over 5 months. Oil capacity is 3.7 qts, which is exactly the amount drained, that plus a small amount in the filter and sent to sample, makes for a very small increase in oil level (due to fuel dilution). This fill was a Pennzoil...