Valve Cover Photos - 2016 Acura RDX w/161,000 miles
- Thread starter The Critic
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- Jan 23, 2024
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Definitely still depends on climate, and engine, forced induction, fuel dilution, etc.
Plus, who's to say it wouldn't have been protected more?
Plus, who's to say it would have been protected more?
No way to answer either question. We need Elon Musk to sponsor that test. He's the only one I know with that kind of disposable money.
Of course. Never suggested otherwise.
Sure. That’s a more roundabout way of saying 0W20 protected just fine
Where's the need?
With the feels…
My wife's 2016 RDX has 128,000 miles on it with the same oil change regimen as yours. I haven't had the valve covers off to look, but I suspect it is just as clean as yours. I replaced the PCV valve a few years ago as a maintenance item and it was still working fine. Burns absolutely no oil between changes.
A question for the OP, were you getting any ticking or other symptoms indicating the need for the valve adjustment? My wife's RDX hasn't had them adjusted yet.
A question for the OP, were you getting any ticking or other symptoms indicating the need for the valve adjustment? My wife's RDX hasn't had them adjusted yet.
Patman
Staff member
I was going to say that!Nice!
The one time you used ST, must have cleaned up everything!
Piston skirts, cylinder walls etc. judging the “health” of the engine by the cleanliness of under the valve cover doesn’t make much senseI want to see the pistons.
Looks very good. Looks likes one bank ever so slightly darker than the other. But, could be lighting. Muzzled or not?
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Looks great! Thanks for the photos.
I'm not the OP, but this question about "ticking" comes up a lot. My understanding is that noisy valves are perhaps too loose...which isn't harmful in itself. But the Too-Tight Valves are QUIET...and those clearances should be loosened. The reason is, too tight means they may not be seating well, allowing combustion gas to squeeze past the seat area...which heats it up. This can fracture the valve edges. So "ticking" isn't a good-enough indicator to give clues to whether clearances should be checked.
Between 0 to 7K mi, was there any early OC? So the 1st oil change was at 7K?
I love this post. The superb recordkeeping has silenced the vocal segment who proclaim that manufacturer recommendations are a conspiracy. I am scratching my head about a switch to ultra-premium oil so late in the game, after you have essentially proven that good oils do the job just fine. (personally, I like Mobil 1 a lot, but find it just slightly too pricy). These J-Series engines are built for starship mileage and best wishes for the next 160k.
Oh my gosh! Those J35s are so terrible on oil! Your engine is going to explode at 8k intervals!
Very very nice. Probably the cleanest VCM engine I remember.
How do you know what’s been done over the last 20k? It could have not been this pretty prior to HPL. In all likelihood it was pretty clean anyways, but since OP didn’t check before the HPL we can only say “looks great today”.
Sure we can. The science shows that xw20 kept it clean.
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