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I'm consistently hitting into the low to mid 40s tank after tank. I live in Alamogordo NM, which has a mild winter climate, and most of my driving is speeds under 55mph. I sometimes take the highway to Las Cruces but restrict my speed to 65mph and still manage high 30s. I'm really pleased with...

I'm updating this thread with a recent sample report from the same Caterpillar lab. These two reports are not consecutive. There was an unsampled interval between these two reports. I'm relisting the old report in parenthesis to make it easier to compare. The oil is Valvoline's top-of-the-line...

I found another UOA report from a guy on a Kona forum struggling with a fuel dilution problem. He has no Pb in the report but high Cu. This is from a factory-fill UOA. https://www.hyundaikonaforum.com/threads/7-3-fuel-in-used-oil-change.3849/

Found this on reddit. Here's a guy with a 2019 (2020?) Veloster with a 1.6L turbo engine. He's got 36000km on the car and the oil has 5000km. Pb is pretty high at 68ppm. He notes in the comments that the lead is probably from his octane booster. I'll continue to scour the interwoobs for other...

I have an appointment with the dealer in a week to fix an oil leak where the oil pan bolts to the block. The oil will get changed then. I hear ya about break-in metals. I've been doing oil analysis on my cars and bikes for a number of years and I've never seen Pb so high in the factory-fill oil...

My fuel economy increased from low 40s to mid 40s. An increase of about 7%. This increase came within 100 miles of adding the Techron. You don't think a clogged injector (or possibly more than one) coming clean would make that difference? I'm really impressed with the results of the Techron...

The Blackstone oil analysis comments say fuel dilution can be ruled out for the rising oil level. What else could cause a rising oil level?

This was drawn from my 2022 Hyundai Tucson hybrid at 2800 miles because I had a slowly rising oil level and suspected fuel dilution. I did not smell any fuel on the dipstick, though, and my fuel economy was pretty good. I wanted to quantify the amount of fuel dilution if possible. Caterpillar...

Originally Posted by Chris142 Have you considered a 15w-40? No. I don't think the 20 weight is a problem. I'm just indicating surprise that the Delo sheared down. In my 50 years of motorcycling, adding new crankcase oil results in markedly smoother shifting, at first, and then the shifting...

The lab was Western States Caterpillar. Newest test on the left column. Factory fill on the right column. https://lh3.googleusercontent.com/s...PmSY9HaaF05Nfg0fGE1wWr0XjqfpJq2xFQ=w2400 The only noteworthy thing about the factory fill, IMO, was that it had sheared to a mid 20-weight in only...

Honda is fairly generous in its oil recommendations. They say pretty much any SN oil will do as long as it's 10w-30 and non energy-conserving or resource-conserving. I'm using Chevron Delo 400 10w-30 XLE in it now. This is a multi-fleet oil that meets SN and a number of diesel designations also...

Lab: Western States Caterpillar Date: 19 Sept. 2018 Miles on Oil: 760 Miles on Bike: 760 Cu 10 Fe 22 Cr 1 Al 20 Pb 0 Sn 0 Si 32 Na 9 K 5 Mo 2 Ni 2 Ag 0 Ti 0 V 1 Mn 4 Cd 0 Ca 1952 P 1003 Zn 972 Mg 17 Ba 59 B 171 V @100C 8.2 ST 0 Oxi 8 Sul 19 Nit 6 W N A N This is factory fill which was...

Originally Posted By: mightymousetech Here is a different perspective. Did the leaks start to show during the freezing temps the car never saw before? Did the leaks stop when it warmed up? Could be just temperature related. Old seals get very hard/brittle in below freezing temps and will not...

Originally Posted By: Nick1994 You have an old car, and it leaked oil as old cars do. SuperTech had absolutely nothing to do with it. It would have leaked if you had used anything else. But I had an old car when it didn't leak a drop also. Honda's aren't leakers, generally. My engine was...

My car is a 2002 Acura RSX with 195kmi and most of it's life was spent in a mild climate. I used conventional Havoline and Chevron mostly and oil analysis showed excellent results with these. I then moved to Idaho where the winters are very harsh and decided to use synthetic but didn't want to...

Originally Posted By: lazaro hey thanks! the print is small on the sheet, please help me, the Kvis@100 are those ranges in the 8 sec ranges? and is the fuel range in the 2 range? thanks! Lazaro, I don't know about the Kvis values. The lab is WearCheck in Cary, NC. Maybe someone more familiar...

Lazaro, I've posted many of my earlier oil analysis results on the board already. Here's one of them: http://www.bobistheoilguy.com/forums/ubb...true#Post247793 I haven't posted any of the later ones because they were so typical of the earlier ones (except for the slightly increased silicon...

Originally Posted By: FZ1 I have an open question for Jay and others. I was a little concerned when I changed my plugs for the first time at 90k and they looked similar to Jay's. I.E. some discoloration of electrodes,very light white coating,rust ring around topside of plug. Are the plugs in the...

Originally Posted By: rationull To echo other respondents, looks very nice! How much adjustment did the valve lash actually need? It's hard to say. I would guess I adjusted the intakes about .001" closer. It was so tough to get at the valves lash adjusters that I didn't spend much time making...

Originally Posted By: mgm13 Nice pics of really clean looking engine. What was the OCI and what oil filter pls. Thanks Big Mike About 7500mi for the OCI and I use Nippon 15400-POH-305 filters. The manual recommends changing the oil filter every other oil change. I tried that once, but my...