Oil Change: 0w-30

[InfinQX4]

Changed to oil to BG 0w-30 today. 115K and runs real nice. Didn't think I'd be able to tell a difference and I wasn't looking for it. Just hit me as I pulled out on the street - man she runs nice and smooth! Better than before!

I've been running synthec for years, primarily Mobil 1. Had the old oil flushed out, and filled with the 0w-30, new filter of course. Supposed to last 15K. Need to change the filter every 5 or so and top off what's lost in the process. I'm sold so far! Thought I'd let you all know.

[Densetsu]

I've been tempted to run 0w30, but only in the winter up here when it gets down to -30C and lower. I know plenty of others who do it, and it certainly makes sense (especially if you've changed oil in a garage that's -30C... you can see how thick that stuff gets).

In the desert, do the temps get low enough to even be able to tell the viscosity difference between 0w30 and 5w30? I mean, I checked the weather forecast, you guys in Chandler, AZ have a high of 88F/30C today. I thought the first grade in a multi-grade oil (0w, 5w, 10w, etc) was tested in conditions around -25C to -35C (-13F to -31F).

At your ambient temperatures today (88F/30C) the viscosity of 0W30 and 5W30 would be pretty similar... at operating temp (185F/85C) they'd be identical. In theory, anyways, sounds like you switched from Mobil 1 to BG, which could also be the reason why the car sounds like it runs smoother.

Or maybe you just love your QX4 and think it sounds awesome.

[W O T]

I dont think I would ever run 0 weight oil

Whats the reason for it other than having viscous oil at low temperatures on startup? Your oil heats up VERY fast (ive watched it in my racecar)

I couldnt imagine what 0 weight would do to a car with an old oil pump, damn near zero oil pressure @ idle Im sure

Not worth it to me

[InfinQX4]

It was suggested to me by the guys at the shop I've always taken it to. They're running it in their higher mileage trucks and cars (4-Runners, LS460's, etc.) and swear by it even in the temps out here. I know it's really formulated for colder weather, but they say it's great for higher mileage engines as well, aside from being an improvement over Mobil 1. They have been trying to get me to use it since I passed 100K.

I totally understand the hesitations, but I figured try it anyway.

[InfinQX4]

Or maybe you just love your QX4 and think it sounds awesome.

Is this even something we question here