Break-in period for new GX460 engine
11-13-20, 01:01 PM
#16
Driver School Candidate
Thread Starter
Toyota/Lexus vehicles are very forgiving. That's a great viewpoint re: the leased vehicles. There are ALOT of high-mileage Toyota/Lexus vehicles out there. I have a 99 4Runner that just hit 401,000 miles and doesn't leak a drop of anything. I had an 2007 BMW 530 with 130k miles and there was always some new leak or electrical gremlin to deal with.
I saw the following on the comments section of Jalopnik a while back and took a screenshot because it really made me laugh:
"See, here's the thing: Japanese cars don't require maintenance.
You can park it on the street in the snow, never change the oil, never get it serviced, and somehow it will keep driving for 150k miles without complaining. And if something does break...just replace it...that one faulty part won't cause the rest of the car to fall apart.
Meanwhile, if you look at a German car wrong, the control arm joints die, which causes the car to judder under braking, which warps the rotors, which unevenly wears the pads, which rattles the engine, which breaks a knock sensor, which damages the engine, which totals the car."
I saw the following on the comments section of Jalopnik a while back and took a screenshot because it really made me laugh:
"See, here's the thing: Japanese cars don't require maintenance.
You can park it on the street in the snow, never change the oil, never get it serviced, and somehow it will keep driving for 150k miles without complaining. And if something does break...just replace it...that one faulty part won't cause the rest of the car to fall apart.
Meanwhile, if you look at a German car wrong, the control arm joints die, which causes the car to judder under braking, which warps the rotors, which unevenly wears the pads, which rattles the engine, which breaks a knock sensor, which damages the engine, which totals the car."
11-15-20, 07:07 PM
#17
This is 100% of the reason why I left all other auto makers behind and bought something I always knew was “boring”, a Toyota. Something I said I’d never do, buy a Toyota. Well **** I bought two and I finally get it. Perhaps boring is what I should of done decades ago instead of always going after the cool, fast and disposable. I ****ing love both my 470 and 460 and will die with only owning these and inheriting my dad’s ‘02 Silverado Z71 2500HD 6.0L gas long bed, you know, back when GM trucks didn’t suck.
The following 2 users liked this post by MrTorgue:
hadokenuh (11-17-20),
qwertykid0 (11-15-20)
11-17-20, 08:43 AM
#18
On our 2019, I drained the factory oil and changed the filter at 109, 1764, 4849, and 7743 miles and did a UOA on each drain and fill and the wear numbers are down to normal levels at the 7743 drain.
The wear numbers even at the 1784 change were excellent compared to other engines
Your front and rear diff and TC are just as important as the engine IF you're going to be keeping this forever.
The wear numbers even at the 1784 change were excellent compared to other engines
Your front and rear diff and TC are just as important as the engine IF you're going to be keeping this forever.
The following 2 users liked this post by LexusGXFan:
mountaineer (08-10-24),
qwertykid0 (11-17-20)
11-17-20, 09:47 AM
#19
Driver School Candidate
Thread Starter
On our 2019, I drained the factory oil and changed the filter at 109, 1764, 4849, and 7743 miles and did a UOA on each drain and fill and the wear numbers are down to normal levels at the 7743 drain.
The wear numbers even at the 1784 change were excellent compared to other engines
Your front and rear diff and TC are just as important as the engine IF you're going to be keeping this forever.
The wear numbers even at the 1784 change were excellent compared to other engines
Your front and rear diff and TC are just as important as the engine IF you're going to be keeping this forever.
then agree on all the other maintenance. I heard it’s good run the center diff and 4lo once a month just to keep the system working.
12-25-20, 04:52 PM
#20
Since the GX (and all Lexus models) use synthetic oil, oil changes are based more on mileage than on time. If you only drive your vehicle for 1500 miles in 6 months, you don't need to change the oil. Sounds like someone (like a dealer) is trying to sell you 'oil changes.'
12-25-20, 07:25 PM
#22
Since the GX (and all Lexus models) use synthetic oil, oil changes are based more on mileage than on time. If you only drive your vehicle for 1500 miles in 6 months, you don't need to change the oil. Sounds like someone (like a dealer) is trying to sell you 'oil changes.'
The following users liked this post:
ASE (12-26-20)
12-26-20, 08:09 AM
#23
Another oil thread...Ugh! I would like to see data for all of the claims being made above (metal flakes, fuel dilution). What do you mean by Wear Numbers? You mean you are actually ripping the engine apart and assessing the wear on the engine parts? I have yet to see ANY correlation between UOA and actual engine wear!!! (see Bob is the oil Guy) Really metal in the oil from break-in, you have some serious issues (I'd like to see the oil test report). I have seen studies with data on lubricating and cooling capabilities of synthetic oil and the oil lasts well over 10K miles. Next time you are thinking of changing your oil (and the environmental consequences), get it tested (Blackstone labs for example). For my "other car", I have researched oil changes and found studies where you are literally increase chance of problems by too frequent oil changes.
The following users liked this post:
Northcut (12-27-20)
12-26-20, 09:57 AM
#24
Pole Position
With every new engine the first couple of oil changes contain high amounts of metal from the engine breaking in. If you leave this oil circulation it acts as microscopic sandpaper. For prevention change the oil as mentioned. In other vehicles I have done the same with very good results. It’s not about the oil breaking down it’s about getting the contaminants out.
12-26-20, 08:25 PM
#25
UOA’s consistently show high amounts of metal with the first 2 - 3 oil changes. Showing how this affects the engine over time is not a simple matter. But it is quite logical that does. In my opinion, the effect would be more notable in overall longevity - oil consumption and potentially how well the rings seat. I have also read a number of articles that basically say the majority of the break-in happens within the first 200 miles.
Let me just put it this way, I used the same advise and changed my oil in my new WRX at about 500 miles and again at 2000 miles. When tuning the vehicle the tuner mentioned how my engine was putting down more HP than he saw in many other of the same vehicles. I attributed this to the break-in process I followed and the frequent early oil changes but I can’t prove it.
Let me just put it this way, I used the same advise and changed my oil in my new WRX at about 500 miles and again at 2000 miles. When tuning the vehicle the tuner mentioned how my engine was putting down more HP than he saw in many other of the same vehicles. I attributed this to the break-in process I followed and the frequent early oil changes but I can’t prove it.
Last edited by Lavrishevo; 12-26-20 at 08:36 PM.
12-26-20, 08:28 PM
#26
Agree ... first oil change at 1,200 miles looks like gunpowder was dissolved in the oil ... microscopic shimmering particles in suspension that the oil filter cannot remove from circulation. I also switch from 0w-20 to 10w-30 given the rest-of-world specification for the same engine recommends heavier multi-grade. Running 0w-20 is great for meeting CAFE fleet numbers and for getting a rounding error improvement in gas mileage, but for me ... I'll take engine longevity as recommended BY TOYOTA in countries where government regulation does not cloud the law of physics.
The following users liked this post:
Northcut (12-27-20)
12-26-20, 10:30 PM
#27
Pole Position
- 2006–2017 Lexus LS 460 & LS 460 L (Middle East)
- 2005–2011 Lexus GS 460 (Middle East)
- 2009–present Lexus GX 460
- 2012–present Toyota Land Cruiser (China, Middle East and Australia)
- 2009–2012 Toyota Sequoia
- 2009–2019 Toyota Tundra
The following 2 users liked this post by ASE:
Lavrishevo (12-29-20),
Northcut (12-27-20)
12-29-20, 09:33 AM
#28
Racer
The following users liked this post:
Lavrishevo (12-29-20)
12-30-20, 01:39 PM
#30
Driver School Candidate
Agree with above. Drove my 2019 GX off the lot and didn't do anything different than usual. I have had three 4Runners ('02, '15, '16) and did the same to those. The first one had 239k miles when I sold it and still ran like a champ!