AZjeff
$50 Site Donor 2023
If a programmer who worked for me invented the Lake Speed Jr persona I'd fire him.
Half of BITOG applauds his multiple short OCs and fresh quart flush and the other half thinks it's wasteful.
LSjr Video "Facts About Oil Changes"
- Thread starter fantastic
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Half of BITOG applauds his multiple short OCs and fresh quart flush and the other half thinks it's wasteful.
Then shouldn't 50% of BITOG be correct at least half of the time?
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- Jul 28, 2024
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Doesn’t Donaldson also specialize in the commercial diesel business maybe diesel oil filters become more efficient with loading.
I highly doubt this.
Doubt what?
If your doubting there is a wet and dry spec - there is. Here is the one for a Nissan VQ40 - (best engine ever). Its 1.25 quarts that stays in the engine on full drain.
Look yours up. Its fun!
And, here’s one for my K24 powered Accord.
So have we learned anything in this thread? Have we come to any conclusions?
It is his daily. Doubt he is just randomly putting miles on it for the sake of "testing". I am sure there is also a tax write off offset involved here also.Man, that channel must be doing really well, buying a $40K+ truck just for "testing"
Gonna be interesting as I have the same truck...
I think we want popular YT'ers to share evidence based oil related data. Especially, one that claims they do. It seems they've gotten this information incorrect & instead of correcting themselves or accepting new information all we got was "Wait for future videos" & "Don't have the data". Disappointing, but it's the YT world of clicks & half of it should be considered skeptical information. I'd say LSjr probably does better than 1/2 but still. I do like his inside videos when he goes to Donaldson or Valvoline as an example. Sounds like he's going to be using more of his UOA data for his audience which will be interesting to see.
Just wow......not sure how anyone can defend this guy after that video. Yikes.
It would have been quicker to watch if he had just been wearing a clown suit from the start. Dude just spitting out miss-information on oil filters.
It would have been quicker to watch if he had just been wearing a clown suit from the start. Dude just spitting out miss-information on oil filters.
Should have been more clear. I highly doubt "This guy clearly knows very little about how engines actually are made or work"
garageman402
$100 Site Donor 2026
Wow! Yet another thread on LSJr's infamous oil filter loading statement! That makes three including mine, I scanned the suggested thread titles, but that was not in the title. Glad I put that in mine.
I usually let my oil drain at least overnight, sometimes longer if I don't need the vehicle right away. I think Lake pours the quart through to speed that up a little. I have taken the drain pan away & placed a smaller pan when it slows to a slow drip, & I'm surprised how much oil I collect ,at least a half cup (4oz). When I was in high school my friend's dad owned a gas station & he would put his car on the rack & let it drain all day. He said the new oil stayed clean longer.
While on the subject of LSJr, another "test" he did to see if the filter really did bypass when oil is cold & thick seemed not accurate. One thing, the oil was room temp, not 35-40F. He put pressure sensors ahead of & behind the filter & compared the two. For the most part they read the same, so he concluded the filter wasn't bypassing. If there is little to no flow, the pressure will read the same no matter what the restriction is. Much like when you turn on a water hose with the nozzle closed, the pressure will equalize when flow stops. I think that was an inconclusive test.
I usually let my oil drain at least overnight, sometimes longer if I don't need the vehicle right away. I think Lake pours the quart through to speed that up a little. I have taken the drain pan away & placed a smaller pan when it slows to a slow drip, & I'm surprised how much oil I collect ,at least a half cup (4oz). When I was in high school my friend's dad owned a gas station & he would put his car on the rack & let it drain all day. He said the new oil stayed clean longer.
While on the subject of LSJr, another "test" he did to see if the filter really did bypass when oil is cold & thick seemed not accurate. One thing, the oil was room temp, not 35-40F. He put pressure sensors ahead of & behind the filter & compared the two. For the most part they read the same, so he concluded the filter wasn't bypassing. If there is little to no flow, the pressure will read the same no matter what the restriction is. Much like when you turn on a water hose with the nozzle closed, the pressure will equalize when flow stops. I think that was an inconclusive test.
FYI follow up. I found the email I had with the Purolator engineer and a manager at Bosch back in 2011 when I asked Purolator if oil filters got more efficient with use. This was before M+H bought out Bosch's half of Purolator. The engineer is describing the loss of oil filter efficiency as the "hockey stick" curve, which is similar to what is seen in the graph in post 16 of this thread. The paper by Purolator/M+H with that graph came out years after the emails I had with Purolator back in 2011. I bet no oil filter company these days would allow any of their engineers to have repeated technical email correspondence like Purolator allowed back in 2011. They had a couple of Purolator engineers respond by email to a lot of technical questions I asked them.
The latter part of the test referenced is the point just before an oil filter goes into bypass. So technically, oil filters do increase in efficiency... until they don't.
Sure, that's been pointed out in all these discussions. But who really wants to run an oil filter to nearly 100% clogged to make it more efficient right before it goes into bypass all the time?
Although Honda's MM shows to only change the oil filter every other OCI, that will never happen under my watch.Sure, that's been pointed out in all these discussions. But who really wants to run an oil filter to nearly 100% clogged to make it more efficient right before it goes into bypass all the time?
Do you think your oil filters are in danger of clogging after one OCI?
Typically low efficiency oil filters take a lot more debris and therefore more use time/miles to get near the "clogged" state. But on the negative side, low efficiency oil filters also don't catch particles as well, and they also shed off already captured debris and lose more efficiency with increased loading than a high efficiency filter, so using them for long OCIs isn't really ideal. And of course the media design and total media area is also a big factor in the holding capacity and the loading rate with use, and how efficient it remains with debris loading. Typically, an oil filter that has a low ISO 4548-12 efficiency is going to lose more efficiency with use loading than a high efficiency filter.
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