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AL you had me at the first paragraph of post #1 (and #63). I must have come across your thread before but cylinder head sounds deep. That last pic got me curious. Definitely my next project.

I believe you can. The owner's manual is a bit confusing though. If you flip to page 401 of the PDF, it tells you what to use depending on where you are. 5w20 was recommended for fuel economy. https://www.mazdausa.com/siteassets/pdf/owners-optimized/2010/cx7/2010-cx-7-owners-manual.pdf I have...

These two models were half off so I decided to assemble both using one set of acrylic pens (12 colors). The quad bike gets red body panels, black tires, white rims, silver gears, and gold suspension parts. There was not much ink left in those colors. The other one is going to be a...

My original cap was 8.5 years old and 167K miles (269K km). It wasn't exactly responsible for any particular symptoms. I should put it back and monitor for problems. 🤔

I replaced mine for the same reason as AL stated above. The old/factory didn't look deficient, but the new one fits a lot tighter.

Valvoline Restore & Protect 5w30 is currently $29.97 on Amazon. How much is SuperTech by the way? I know at least one other member here who uses SuperTech oil/filter with short OCI. For my lifestyle, $30 oil plus $15 OEM filter is $45 for 5K miles every two months. 45÷60=0.75. Less than a buck...

Thank you! 115C is about 240F so that's crazy hot. Now I know what signs to watch out for. 👍

5K miles oil/filter change today (from 165,550 to 170,526 miles) Using VRP for the first time. The oem filter was still tight and came off by hand. It is going to Pete once fully drained. Start to finish took about one hour. Got some yard work done while waiting. I used to wait for the drip to...

There was probably a change in the range of fluctuation.

Normal like in the 190s and how much higher did it go when idling? I didn't know it wasn't supposed to do that. 😭

Glad that everything is back to normal! I thought there'd be warning signs before fuses, relay, or batteries go out. In my case, things got gradually worse over time until I got stuck. 😬

I understand where you're coming from. Besides getting samples analyzed, have you tried cutting open your used filters? 🙂

What does inconsistent temperature look like? 😅 My MAF sensor reading is all over the place.

Are those dark bits already in the pan or did they come from the radiator?

Folks, I have a jug of used Royal Purple oil from the oil/filter change at the end of August (before the most recent one showing contamination). Is it worthwhile to send a sample in? 🤷 If it comes back showing the same elevated values for potassium and sodium, then the coolant contamination is...

Got it! With the beauty cover off, there doesn't seem to be more debris on top of the valve cover. Did you do the VC gasket because of a leak or as a preventive measure?

You mean there's more sh*t down there? 😅