# AT YOUR PERIL: Yet another oil discussion. 0W-20, 5W-30 & 5W-40 **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [June 1, 2026, 6:34pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774 "2026-06-01T18:34:21Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![TheWonderful90s](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thewonderful90s/32/29584_2.png) [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Post date:** [June 1, 2026, 6:34pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/1 "2026-06-01T18:34:21Z")
Title: We Tested 0W-20, 5W-30 & 5W-40 in the ENGINE — One Clear Winner! They test the 3 oils and do oil analysis to measure the wear metals to determine wear. [![](https://global.discourse-cdn.com/cartalk/original/3X/8/6/863740de4ff059ec31fc5d07263ee722818ddc38.jpeg "We Tested 0W-20, 5W-30 & 5W-40 in the ENGINE — One Clear Winner!") ](https://www.youtube.com/watch?v=KMV71AlPwyU&t=189) Edit, there is no need to report the topic and have it removed from the forum because you think it is low quality content, AI generated, or because you disagree with it. There is no forum rule against referring to AI enhanced content. It could be a machine translation from a different language, or an AI altered repost of another quality article. Yes it is sensationalized like a lot of stuff on youtube is. The image of the video showing the sludge is exaggerated. A lot of people believe this stuff though, so you can discuss your reasons for why you disagree if you like. That’s what this place is for. It is true that some European vehicles with the same engine specify thicker oil than the US market version. I don’t know how you can get around that. Here is another thing I found on a random discussion forum about a Honda. It also talks badly about a particular 0W20 oil. > [@](#): > > Switched to my preferred oil 5w30 Valvoline. Mostly because I can get it for like 26$ for 5qts and I always run the high mileage version full synthetic. As you > can see from the results, firstly there is nearly no fuel dilution. Biggest issue now is viscosity degradation. 100 degree cSt when the oil is new should be around 10.7 according to SAE tests and valvolines own documentation, yet over 4000 miles it fell down to 8.3. That is a 22% reduction in viscosity. Although oil rarely will reach 100C in the oil pan, it will exceed that in the turbo charger. > > Over all, might switch to a higher strength 5w30 if I can find a steady supply of it under 30$ for 5qts in my area. But just based off this data, switching to a 5w30 oil is already MUCH better. Honda’s 0w20 is obviously trash, doing pretty much nothing to really protect the engine, flash point is so low that its lower than what I would get with 0w16 on my toyota’s, and the fuel dilution even on the k20 is a problem people keep denying yet I have evidence. > > Either way, Just wanted to put that out there. > The data is all here, trolls be gone, I won’t respond or participate in arguments of which oil is better or which brand or how none of this matters because engines are “so high tech and engineering is so good” etc. Engineering is always limited by the finance department, source, I am an engineer. Source: [0w20 vs 5w30 Oil Results - Accord 2.0T | 2018 Honda Accord Forum](https://www.accordxclub.com/threads/0w20-vs-5w30-oil-results-accord-2-0t.10014/) ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [June 1, 2026, 6:59pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/2 "2026-06-01T18:59:55Z")
As I said elsewhere: Why the computer voice? Why not a single image related to the actual test? Why should I consider this a credible source? Nothing about this video makes me think it’s legitimate. They supposedly spent a huge amount of time and money on these tests, yet offer no actual documentation, other than (computer) stated claims. Really odd. ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [June 1, 2026, 8:26pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/3 "2026-06-01T20:26:53Z")
The video is AI created bull-flop… If you want real data-based oil information Lake Speed Jr. is my go-to YouTuber [![](https://global.discourse-cdn.com/cartalk/original/3X/4/5/4547d039f8d3f439ea54efff4a0415407f764b05.jpeg "More Ai Lies? The FACTS about 0W-20 vs 5W-30 (With Evidence)") ](https://www.youtube.com/watch?v=1OI2sXdrpdA) edit: flagged by accident ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [June 1, 2026, 8:56pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/4 "2026-06-01T20:56:46Z")
Thanks, @Mustangman - you confirmed all my doubts about that original BS video. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [June 2, 2026, 1:00am UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/5 "2026-06-02T01:00:06Z")
Another one for that video is AI generated… ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [June 2, 2026, 1:36pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/6 "2026-06-02T13:36:07Z")
Oh well, as long as oils are required to be compatible, I can top off my lawnmower with full synthetic. ---
**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\ **Post date:** [June 2, 2026, 3:00pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/7 "2026-06-02T15:00:59Z")
> [@davesmopar](#): > > Another one for that video is AI generated… That video is a steaming pile of cr%p. The only thing worse than that video being out there is that people watch and believe any of it. A good majority of us are out here trying to do right and we’re constantly fighting all the misinformation put out there by the AI bots. ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [June 2, 2026, 3:14pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/8 "2026-06-02T15:14:55Z")
I flagged the original post, we’ll see what the moderators do. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [June 2, 2026, 3:20pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/9 "2026-06-02T15:20:04Z")
I flagged it also. I miss the feature that if you were flagger number 5 you could watch the thread go off into cyberspace. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [June 2, 2026, 4:44pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/10 "2026-06-02T16:44:53Z")
You could always go in and change the tittle/topic to warn people it is AI generated BS… ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [June 2, 2026, 6:26pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/11 "2026-06-02T18:26:58Z")
On ‘next door’ a person claimed gas from a big box store gas station to blow up. Looking back, yeah when I was in high school I was gullible, but social media is making any age gullible. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [June 2, 2026, 6:32pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/12 "2026-06-02T18:32:53Z")
> [@Purebred](#): > > On ‘next door’ a person chain gas from a big box store gas station to blow up. What are you trying to say? ---
**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\ **Post date:** [June 2, 2026, 7:04pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/13 "2026-06-02T19:04:56Z")
---
**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\ **Post date:** [June 3, 2026, 1:02am UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/14 "2026-06-03T01:02:09Z")
---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [June 3, 2026, 4:06am UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/15 "2026-06-03T04:06:17Z")
I dunno, maybe put your flags back in your holsters boys and let the discussion unfold. I’m not about to change what I have been doing for close to two million miles, based on any videos or comments here. I change at 3000, and 5000 with the specified oil. Don’t care about the cost. There is one brand though that i will not use. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [June 3, 2026, 5:15am UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/16 "2026-06-03T05:15:50Z")
> [@TheWonderful90s](#): > > Edit, there is no need to report the topic and have it removed from the forum because you think it is low quality content, AI generated, or because you disagree with it. Ten years ago, the moderator told us that it was not her place to judge and censor a post should it be wrong or inaccurate; it would be up to the forum members to discuss the information they disagreed with. It is difficult for some to reply to a topic that holds so much mystery and fear. Easier to flag and wait for the moderator to handle the disagreement. The oil viscosity choice makes little difference, running out of oil is a problem. ![20230909155730](https://global.discourse-cdn.com/cartalk/original/3X/5/5/55ee0fd24f7d37b6f4b5315d51061cd03c9f9346.jpeg) ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [June 3, 2026, 11:35am UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/17 "2026-06-03T11:35:18Z")
That false claims are everywhere. I was trying to say people are gullible, people believed that some brands of gasoline will cause their engine to explode. ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [June 3, 2026, 12:48pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/18 "2026-06-03T12:48:34Z")
> [@Nevada\_545](#): > > It is difficult for some to reply to a topic that holds so much mystery and fear. Easier to flag and wait for the moderator to handle the disagreement. This is way different than a post with a debatable opinion. This is a post of a video that was completely created by AI with no actual facts, information, or images. Fabricated nonsense. I put that in a different category. The OP is welcome to post any actual information on the topic. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [June 3, 2026, 12:59pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/19 "2026-06-03T12:59:05Z")
> [@texases](#): > > This is a post of a video that was completely created by AI with no actual facts, information, or images. That is why I used my “super powers” to edit/add a caveat to the thread’s title. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [June 3, 2026, 1:06pm UTC](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774/20 "2026-06-03T13:06:45Z")
> [@Purebred](#): > > people believed that some brands of gasoline will cause their engine to explode. Sounds just like the kind of nonsese that is on Next Door. [Next page](https://community.cartalk.com/t/at-your-peril-yet-another-oil-discussion-0w-20-5w-30-5w-40/205774.md?page=2)