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Cold start is definiely a problem for PM emission on DI engine, fuel likes to condense on the cylinder walls and piston tops. Here is a graph of PM emissions over the FTP test cycle for a Mazda3, which is DI only. As you can see the Phase 1 (Cold Start) of the test has significantly higher PM...

Right, we all want clean air and water so we might as well try and make America a technological leader in it.

No one is mandating the additionally equipment. The EPA and CARB set the standards and the OEMs can choose their path to meet the standards. While I don't think I agree with all the EPA's MY27 emissions standards, I do think pushing manufacturers to produce cleaner cars over time is good. I...

My wife's Honda Civic with the 1.8L PFI engine does. It has more soot then my Mazda CX-50 with the DI 2.5 N/A engine. It would make your air cleaner. How much cleaner it would be is a different answer, they largely won't make much difference for people living in rural areas. But other more...

Looking through Porsche's certification documents for the 911, it doesn't appear that they are using a GPF on the US spec cars yet.

Sticking to the topic of discussion, China's automotive emission regulation, China 6B, also basically requires the implementation of a GPF to meet the PM requirement. PFI stands a better chance of being able to get by without a GPF but it would still be close.

I thought some people here maybe interested in this information, so I put together my thoughts and my understanding of GPFs into this post. TLDR: Increasing criteria pollution regulation (NOx, NMOG, CO, PM) are driving the need to add particulate filters to the exhaust after-treatment systems...

Everything looks fine right now. The engine is still breaking in so the wear metals will look higher but appear to be pretty low forthe mileage. Fuel Dilution is still acceptable to me and viscosity is just slightly out of range for a 5W-30 oil, probably mostly because of the fuel. TBN...

That was my point, the 401k total might look low, but I would hope there is more retirement money else where like a pension, IRA, or brokerage account.

For the 65 and older, I wonder how many just don't have 401k because their job just didn't offer them. That could really drag them median and average down when you have a bunch of zero's. Like my mother who is 61 only started a job with a 401k like ~6 years ago, so doesn't have an extremely high...

With it being blackstone, we have to take the fuel dilution number with a grain of salt typically. But I think in this instance, we can conclude there is well over 2.5% fuel dilution with this sample. I would imagine that number would come down in later UOA's as the ring pack seats. Based on the...

Yes it does.

Thanks for sharing a UOA from such a cool car and engine! Based on the UOA, looks like the engine has worn in nicely. The oil has plenty of life left, so looks like you can extend the OCI; the other option is to run the car harder and keep the OCI short. ;)

As someone who just upgraded from an iPhone 8 to a regular 16. I would say go with the iPhone 16, doesn’t matter if it’s the pro or not. The upgrade was night and day difference for me.

It was just what I had laying around in the garage at the time and wanted to clear out.

Believe it was made in Thailand, I don't have the box anymore to confirm. But it still doesn't have an ADBV.

0W-20, the UOA is posted here

The date code was A31421

Half super tech and half Castrol gtx full synthetic. Both 0w-20

Pennzoil Platinum