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I did a drain and fill. Just to get it done today since I had time I used the Valvoline Advanced Full Syn which is a 75W-90 vs 85 (it’s on sale at NAPA for $40 for a gallon). I’m planning to let that circulate a bit for the next 5 to 6000 miles and then at the 30,000 mile mark change it again...

Based on the Oil Geek's UOA on his SR5's diff oil changed at 5000mi I decided to do it earlier than the 30,000mi I was planning. I really don't have any regrets at all. As you can see from the photos, there was some metal in there that was probably from manufacturing that was caught by the...

So many variables; e.g. mine did not shear with the same oil & engine. Need more UOAs from these engines to really know the answer to that question. I think the point is whether or not it does you're likely good-to-go until 10K for changes BUT not much more. Most here will stick to the change...

When I saw the UOA’s for both the transmission and differential fluid and the amount of wear particles in there, I decided to do mine today. I originally was gonna do it around 30,000 miles but I’ve got some time today so why not?

I agree; Toyota’s 10,000-mile interval is backed by exhaustive validation to ensure these engines reliably reach a 200,000-mile useful life. While UOAs showing dilution & sheared oil may be startling, the data suggests the engine probably still remains within Toyota's engineered safety margins...

According to SAE J300 *new* 0W-20 oil must be between 5.6 and 9.3 cSt at 100C to be in spec so at 6.8 after 4400mi it still is in spec. I do a lot of highway miles bit my city/highway split is likely 60/40 which may account for my numbers.

He said he'd be doing a video on this at some point I believe, but he definitely mentions it. I just did mine - Oil at 4400mi and engine @24,000mi on TGMO and it's still in grade for me:

The Oil Geek changed his transmission fluid and gear oil and ran analysis at 5000 miles. What's interesting is are the wear metal levels in the fluid in case you've ever wondered about what's going on in there until you change. I had planned on changing it early - but not that early - but it's...

Under Federal Motor Vehicle Safety Standrds, low-beam headlights are designed with an asymmetric pattern. In simple terms, the light on the left side is kept lower and more controlled so it doesn’t blind oncoming drivers, while the right side is allowed to rise higher to better illuminate road...

I'm pretty much 100% sure you are not supposed to check it hot, but cold so you can add to appropriate level without the system exploding in your face.

I was under the hood checking the oil level today (cold engine) and noticed that my coolant level was about 1/4 to a half inch below the low mark which surprised me since Toyota did the last oil change at around 20,000 miles. (I would assume they would top off) I’m now at 25 and just did an oil...

My understanding is that only certain Tacomas of different trims have it. The total number of trucks they ship with it is calculated to meet EPA requirements for emissions. Ultimately I don't think they'll allow it to be turned off. First note that it is controlled by Toyota corporate and...

There's a guy near me I see all the time cruising around in a new XtraCab with a 6 ft bed and a matching topper and every time I see it I'm blown away with how good that combination looks. Don't get me wrong, I love my dual cab, but damn this looks good in person!! Am I alone here? This isn't...

Anyone worried about viscosity should be doing regular UOAs. Just remember that the 2.4T runs a variable oil-pressure system and it is designed around thin oil. If heat breakdown is your concern, try 0W-30. And yeah, 5W-30 is used in Europe, so you’re fine there too.

OK. That’s the problem then. When I started to slip sideways I stopped and shifted over to 4H. It kept flashing and in my experience I usually have to be moving for it to actually go into 4H. Maybe I just wasn’t patient enough? Anyway then I figured since I have to be moving I might as well try...

It's below freezing here and it just lightly snowed and I have a couple of questions. First, if a parking sensor is blocked (in this case by melted ice forming a ribbon down across the sensor) is there any solution to the two error screens that keep popping up and flashing every 30 seconds? I've...

When I bought my ‘24 I had the dealer add and install the tonneau cover before leaving the lot. At the time the OEM covers were back ordered with no scheduled restock date. The GM said this was basically the OEM but not branded. Knocked several hundred off the price since it doesn’t say Toyota...

That is what I find interesting. We know that TGMO is manufactured by Mobil however Toyota specifies a different formulation including the Moly type. I'm sure if they wanted to specify what is in the Mobil 1 they would/could get that but they don't. Their other additives +/or ratios are also...

We have heard various stories about brushing by the selector switch and somehow getting the knob to rotate. Ok, hard to imagine how this happens, but get this. The other day I was sitting down and went to scoot to sit up straighter and the utility pocket on my Carhartts caught the edge of the...

What brand of oil did you use for these changes? I ask because of the Moly numbers. From what I’ve seen on new oil tests the OEM Toyota is formulated with higher Moly vs most all other oils including Mobil 1 which everyone thinks is the OEM oil (but it really isn’t)