Recent content by DavidJones

With a new car, what's it going to clean?

What constitutes a "dirty" engine? I can't imagine that an engine with a small, immeasurable, amount of varnish would ever have an oil related issue.....unless any varnish is considered an issue?

Go to Walmart and pick up whatever brand of 5w30 full synthetic that looks good to you. SuperTech. Mobil1. Valvoline. Etc. It doesn't matter. Any of them will work. I think you'll find as a side benefit, that the engine at idle will be mechanically slightly quieter.

Metal particles big enough to see in a new vehicle that has an oil filter? Seems a bit strange to me. I've changed a lot of oil in my 65 years and have yet to see that. The wife's 2012 Highlander got it's 1st oil change at 10,000 miles and every 10,000 since then until Covid came along. Today...

Ford suggests Motorcraft semi-syn? I'd use that in the 5w30 variety.

No doubt, you should run some HPL through it, follow that with a complete engine rebuild and then another round of HPL, just to be sure.

Good deal with 32K miles and the car looks well cared for otherwise with no warranty work? Buying from a dealer? Ask for the previous owners contact info.

Try it.

The OP's engine looks great. Those concerned about the varnish, can you get me a measurement on it's thickness?

What is it that you are trying to achieve with the tune and oil change and treatment etc?

Keep an eye on it and keep doing what you're doing. It could just as easily be that it didn't deposit quite as much fuel in the oil this time around. I wouldn't change anything until I was convinced of an issue.

Since Covid started, my wife works from home. Her 2012 Highlander (currently at about 135,000 miles) went from driving 50 miles round trip on the freeway every day (to a parking deck) to 2 trips to church every week (6 miles week) and a 5 mile round trip grocery shopping once a week. Once or...

If it makes him happy, he could use a different brand every time. The vehicle won't care.

I like it. We need to settle back for a bit. This could take a while....... Unless something else fails first, this car will be well into the 300's before it dies. :)

You can run any quality 5W-30 oil and the engine won't care. The transmission however will soon die.