Topic already exists:
https://bobistheoilguy.com/forums/threads/1-oil-change-per-1-million-miles.362241
https://bobistheoilguy.com/forums/threads/1-oil-change-per-1-million-miles.362241
1(?) oil change per 1 million miles.
- Thread starter GR_CoB
- Start date
He is a CAT diesel mechanic and makes good videos of stuff he repairs at work.
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- 3,001
First time watching this guy, he seems very articulate and reasonable.
I personally of course would never run an oil with the thought of never changing it, and I’m sure the guy in the video feels the same...but on an oil site, it is an interesting topic. And I’ll tell you what: ten years ago I was in a class on fuel injection or something, and the instructor was a former Toyota factory rep - the instructor told us that during the time Toyota went with their 10,000 mile oil changes, they had Mobil1 representatives come in and try to explain/sell them on the concept that their oil (Mobil1) could go 70,000 miles without changing (never mind 10,000), and maybe might never need changing. That it was that “good”. I can’t remember what he said after that point - and I believe Mobil1 was also making Toyota’s synthetic oil initially - but the point was, the oil can handle quite a bit. Now, I’m assuming this conversation ^^ was off the cuff type stuff, but I did find it interesting at that time. I also believe that when Toyota came out with their 10,000 intervals, they hadn’t gone to DI exclusively yet. Never mind turbos.
D
Deleted member 89374
I posted a duplicate of this video by accident here (sorry @M56959): https://bobistheoilguy.com/forums/t...-changes-optional-with-a-bypass-filter.362388.
I found the video by accident on my YT front page. Like you, I posted it as a curiousity, and maybe to beat on it a little bit in good ol' fashioned BITOG style, hehe.
No matter how much soot and other contaminants you remove from the oil, the additive package will deplete eventually. Bypass filtration is good to keep down wear particles. My favorite bypass filtration system for big Diesel engines is the Spinner II centrifuge. It will reduce engine wear somewhat, but you should still change your oil at regular intervals.
Jackson_Slugger
$50 Site Donor 2022
They may have some value but they do not prevent oil from being chemically altered or becoming acidic...
dnewton3
Staff member
The video is, IMO, reasonably articulate and simply assessing the claims of GCF with no bias.
As to the topic of BP filters, they most certainly are a proven concept and, when properly applied and monitored, a very useful tool in cost control with little-to-no detriment.
HOWEVER ... the KEY to getting one's ROI is using BP systems in large sumps, used for long (very long) OCIs. The gain from the lack of changing oil has to be large enough in magnitude to offsett the other BP system operational costs (FF filter changes; BP filter changes; top-off consumption; UOAs). Small sump systems really struggle to even approach a break even point; they can't overcome the operational costs because an OCI is just cheaper than all the operational costs of a well-managed BP system.
The key to equipment longevity is proper maintenance, but there's not only one way to get to the desired result. However, the COST of any one approach may or may not make the decision fiscally sound, regardless of how well it achieves the task. The ultimate goal is to have a sump clean enough that it makes for low wear. There are two ways to get a sump clean:
- filter contamination out
- flush contamination out
Either one works well, so it's a financial balancing act to see which works "better" when ALL inputs are taken into consideration.
As a generalization ...
Large sump systems can benefit from BP systems (when managed right) by returning a $$$ savings.
Small sump systems cannot benefit from BP systems; it's just cheaper to change the oil/filter.
As to the topic of BP filters, they most certainly are a proven concept and, when properly applied and monitored, a very useful tool in cost control with little-to-no detriment.
HOWEVER ... the KEY to getting one's ROI is using BP systems in large sumps, used for long (very long) OCIs. The gain from the lack of changing oil has to be large enough in magnitude to offsett the other BP system operational costs (FF filter changes; BP filter changes; top-off consumption; UOAs). Small sump systems really struggle to even approach a break even point; they can't overcome the operational costs because an OCI is just cheaper than all the operational costs of a well-managed BP system.
The key to equipment longevity is proper maintenance, but there's not only one way to get to the desired result. However, the COST of any one approach may or may not make the decision fiscally sound, regardless of how well it achieves the task. The ultimate goal is to have a sump clean enough that it makes for low wear. There are two ways to get a sump clean:
- filter contamination out
- flush contamination out
Either one works well, so it's a financial balancing act to see which works "better" when ALL inputs are taken into consideration.
As a generalization ...
Large sump systems can benefit from BP systems (when managed right) by returning a $$$ savings.
Small sump systems cannot benefit from BP systems; it's just cheaper to change the oil/filter.
dnewton3
Staff member
NOTE ... READ ...
We had two threads going regarding the same YT video; both posted about the same time.
These threads have been merged so make sure you're reading everything in context and not cross-talking.
We had two threads going regarding the same YT video; both posted about the same time.
These threads have been merged so make sure you're reading everything in context and not cross-talking.
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- Jan 14, 2023
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- 37
Lmao 
- Joined
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The additive and anti-wear package in the oil would definitely be depleted over that period of time, and the TBN of the base oil would be so low and acidic it would probably ruin bearings and rases if the motor sat for any period of time with that oil in it.
Regardless you can't overlook the base oils TBN depletion and it's additive package depletion.. The anti-wear additive package is constantly being used up from the moment you put the oil in the engine..
If an extremely low TBN oil is left in the engine it will cause an acidic corrosion on vital engine parts..
Personally myself I find that to be unbelievable.
Regardless you can't overlook the base oils TBN depletion and it's additive package depletion.. The anti-wear additive package is constantly being used up from the moment you put the oil in the engine..
If an extremely low TBN oil is left in the engine it will cause an acidic corrosion on vital engine parts..
Personally myself I find that to be unbelievable.
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Its a little misleading. Road King magazine asked me for the truck owners phone number. They did an article. The Road king article said the makeup oil added at filter change is equal to a full oil change about every 40K miles.
Why dig this sad thing out of obscurity?
The engine was near new at 1million miles Road King magazine article october November 1996 I believe. Shell Rotella conventional and Bounty big roll paper towels in a Gulf Coast 10 quart bypass filter. Road King Magazine asked me for the truck owners phone number. Probably saw my posts the same as NASA.
My youngest son drives OTR flatbed hauling large equipment, often “oversized loads”, and he mentions that they change the oil in his truck every 30k miles. No mention of a BP filter. I think his truck is nearing 700,000 miles and the only thing that gives him trouble is tires and the air system and the horrible condition of the trailers he swaps out with when picking up a new load. He has refused many a load over the condition of the flatbed trailers.
That truck was being monitored by Shell oil. Shell offshore is a big user of Gulf Coast filters. It was origionally owned by Pepsi Cola of Gulfport Mississippi. I believe it was sold to a guy that hauled motorcyles. He agreed to let Shell oil keep monitoring it. It uses Shell Rotella 15 40 conventional. And a 10 quart Gulf Coast bypass filter which at the time used Bounty Big roll paper towels. On that truck the towels are changed every 10.000 miles. I think it has two full flow filters which are changed every 50.000 miles.Road King asked me for the owners phone number. They did an article. October November 1996 I believe. They said the new make up oil added at filter change was equal to a full oil change every 40.000 miles. Several trucks since then tested.
Been doing it for 60 years on small gasoline eng
. Ive used toilet paper filters since 1964. My Pontiac has a Australian Jackmaster Classic. My favorite bypass filters are mostly gone now. Most people think oil is supposed to get dirty. Im not one of them.
Big diesel engines just need big bypass filters..
I started with a Frantz oil cleaner and Delo 100 30 W in a 64 Rambler American flat head 6. It came with a spin on bypass filter bolted to the head upside down with steel oil lines. To clesn the oil I removed the junk and installed the Frantz.
I believe Shell oil was monitoring the condition of the oil. They had an interest in the Shell Rotella 15W 40 oil. They are also users of the filters. Shell Offshore. Locomotive engines in offshore rigs. I got NASAs interest talking about it. They wanted me to come down to Canaveral and talk about Gulf Coast filters. Im a little filter guy. I called Charlie Sims of Gulf Coast filters. I said send someone to Canaveral that understands big diesel engines. They were moving the shuttle then.
Haven't played it. Probably won't. Just turned eighty and this brought back fond memories of sixty year old articles extolling sticking a Frantz in your car. No room in cars these days. Always arguing on whether you had to use special TP or not.
Ive been using toilet paper filters for over 60 years. Im 84 now. Started with a Frantz in 1964. Started using a Motor Guard a few years later. All I use now is Motor Guards Gulf Coasts a Australian Jackmaster Classic and a flat head Ford V8 canister filter that I converted to use Scott 1000. It has half a roll of VIVA Signature Cloth paper towels in it now. Not crazy about the design of the Frantz. Went with the top loaders years ago. About the only one left that is economical is the Australian Jackmaster. I use Great Value 1000 from Walmart in mine. I did cut a Viva towel element for it. Thats whats in it now.
