wemay
Site Donor 2023
I may try other '30s (ones I've yet to use) to see if it's chemistry, viscosity...or maybe both.
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No question in my Tucson, QSAM 5/30 is noticeably smoother than anything else yet.
- Thread starter wemay
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Try a supertech 5w30 syn at some point
I have known a few Quakers. Exceptionally quiet and smooth people that hold themselves to the highest personal standards. I am not surprised to hear that they produce lubricants with similar qualities.
On my next OC I will try Valvoline EP 5w-30, see how much it could quiet the valvetrain. Also interested on how to reduce viberation when engine shut off, Techron doesn't help.
Agree, Techron won't help. If your engine vibrates when shut off, call a priest. It needs an exorcism.
Propflux01
$100 Site Donor 2025
Huh?
Not sure if it's viscosity, titanium or PAO. Castrol euro 0w40 runs smooth and quiet with no consumption.
Ran 5w20 in my 2005 4.6 Crown Vic for over 300K miles. No issues to report. Used zero oil between changes. I run 0w20 in my 16 Tahoe. The Leos who run Tahoe's in my neck of the woods [2015+] are running 0w20 with zero issues.
Pardon my poor choice of words. : ) When I hit the start stop button to shut car off, the engine will run a little rough for a sec before it stop. I know it won't be as smooth as idling since I'm killing it, however I do notice new cars handle that better than mine, I can barely feel it when engines stop.
Just curious about how new engine performs better in this area. A better balance achieved by design? Or simply because new engine has less gunk & wear and tear?
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You wouldn't notice any difference above freezing, but then again, I have to remind myself most people don't change their oil monthly.
Probably worn motor mounts.
Engine mounts in better condition, often fluid filled too (and still full of fluid). Dual mass flywheels also help. And I suppose you are comparing the same cylinder configurations?
Despite people trying do so you can't fix every perceived problem with motor oil.
Yes, both in I4 2.4L. Never realize engine mounts could make such a difference, haha
My engine shakes my whole car on shutdown and startup, it never did that new, mounts are definitely worn a bit at 152k.
Probably the combination of all three...
BTW, for those who have noticed, Castrol doesn't call their Castrol Edge 0W-40 a "Euro" oil. It's unfortunate that had assigned the moniker to it earlier. But, it does carry the typical ratings and certs for "Euro" oils, such as ACEA A3/B3, A3/B4, MB-Approval 229.3/ 229.5, Porsche A40, and VW 502 00 / 505 00. It's also rated API SN/CF for America.
So far, I like its smoothness in my 2.4L GM engine. Its performance pleasantly surprised me. Moreover, in two weeks I will be driving my Equinox up the Alaska-Canada Highway with this 0W-40 in its gullet... all 3500 miles between Milwaukee and the greater Anchorage, Alaska area. If consumption kicks in along the way (even though I doubt that will happen with its likely superior base oils), I have both Super Tech and QSUD 5W-30 as make-up oils.
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Thank you for posting this. People can't argue the facts.
Boasting thinnies!
My response:
I like my oil Sumo FAT! I like its extra thick layer of protection (MOFT).
My 30 and especially 40-weight oils will CRUSH your 20-weight oils!
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I've never been able to feel the difference between different brands of oil, but I have had vehicles where I could hear a difference between different brands and grades. I always attributed that to more or less lifter noise, but who knows.
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