I have a 2005 Duramx LLY that I use for hauling a boat, old cars, and some around town driving. The engine is just getting broken in, and I'm planning on keeping this truck for a decade or two. I want to do something to increase the oil change interval and improve oil longevity. My current plan is to add either an Amsoil Bypass filter kit or add an oil centrifuge like PPE offers. Does anyone have any advice to help me with this?
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Bypass filter vs Centrifiuge recommendations
- Thread starter sierraglen
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The PPE product is nice and works as advertised but if I was going to spend the money FS2500 would be my 1st choice. Amsoil and Oilguard both make nice systems to. The amsoil probably being the easiest to install if you can fab a bracket.
One advantage to the PPE is you dont have to purchase filter. Then again I only replace my filters every 50k now. I have a customer that goes 70k between oil changes in his PSD with amsoil and the amsoil system. Oil analysis always looks real good.
I personally use the FS2500 and could not be more happy with it. A 3 pack of filters will easily last you 100k miles in your Dmax
One advantage to the PPE is you dont have to purchase filter. Then again I only replace my filters every 50k now. I have a customer that goes 70k between oil changes in his PSD with amsoil and the amsoil system. Oil analysis always looks real good.
I personally use the FS2500 and could not be more happy with it. A 3 pack of filters will easily last you 100k miles in your Dmax
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sierraglen
Thread starter
Thx Smokefan. A bit more research, but prolly the bypass route for me.
No problem bud. Checkout the oilguard and FS2500 for ease of install
The dual flow filter are whats called a Venturi filter. Though it seems like a great idea the effiency isnt any better then a normal stratapore and nowhere near what a good bypass system does.
On my PSD now I run a stratapore with the FS2500 with Redline 15-40. My PSD is far from stock and even with the Treminator HPOP Redline hasnt sheared to much. I'm at roughly 22,000 miles into this OCI. I'll sample at 25k and probably dump it. Add a new stratapore and Redline again
On my PSD now I run a stratapore with the FS2500 with Redline 15-40. My PSD is far from stock and even with the Treminator HPOP Redline hasnt sheared to much. I'm at roughly 22,000 miles into this OCI. I'll sample at 25k and probably dump it. Add a new stratapore and Redline again
To my knowledge nobody has a DF filter for the Duramax thats why i assumed you were speaking of a Venturi. Either way neither are a tru bypass and provide the results of a bypass. The last Venturi Filter I purchased was about 32.00 my cost wholesale and retail is around 45.00 for them.IMO thats plain crazy for no better results then a 18.00 filter
I also dont believe Fleetguard is producing Venturi Filters for the 6.6 anymore.
I will say I love baldwin Fuel filters. Baldwin and Cat filters are the only fuel filters I will install in my shop. Baldwin on PSD ( Excluding 6.0,6.4 & 6.7L ) Duramax, and CAT on any cummins
I also dont believe Fleetguard is producing Venturi Filters for the 6.6 anymore.
I will say I love baldwin Fuel filters. Baldwin and Cat filters are the only fuel filters I will install in my shop. Baldwin on PSD ( Excluding 6.0,6.4 & 6.7L ) Duramax, and CAT on any cummins
Originally Posted By: snakyjake
I use a dual flow filter. It does everything a full flow does, plus what a bypass does...all in one filter. It's real easy!
What application are you using these on? part #'s??
I use a dual flow filter. It does everything a full flow does, plus what a bypass does...all in one filter. It's real easy!
What application are you using these on? part #'s??
Originally Posted By: Smokefan1977
Originally Posted By: snakyjake
I use a dual flow filter. It does everything a full flow does, plus what a bypass does...all in one filter. It's real easy!
What application are you using these on? part #'s??
I think the part number is 9027 (or maybe LF9691) for my 7.3L PowerStroke. Not sure of the performance, but I thought it would do better than a regular oil filter, even if not as good as a separate bypass system.
I also have the Amsoil dual bypass setup, but decided to take it off, mainly because the bypass filters were expensive. I figure the dual flow was a nice and simple compromise.
Originally Posted By: snakyjake
I use a dual flow filter. It does everything a full flow does, plus what a bypass does...all in one filter. It's real easy!
What application are you using these on? part #'s??
I think the part number is 9027 (or maybe LF9691) for my 7.3L PowerStroke. Not sure of the performance, but I thought it would do better than a regular oil filter, even if not as good as a separate bypass system.
I also have the Amsoil dual bypass setup, but decided to take it off, mainly because the bypass filters were expensive. I figure the dual flow was a nice and simple compromise.
LF9027 is the venturi filter for the 7.3
Hi,
sierraglen - The economics of installing a by-pass filter in "normal" use usually don't stack up. Typically the best way is to chose a suitable lubricant, carry out a UOA programme to establish your optimum OCI and regularise your service routines
Even in my heavy trucks the "payback" for me with the MAN-Hummel centrifuge was at the third year of use (@700000kms) and in being able to retro-fit the centrifuge to another engine
sierraglen - The economics of installing a by-pass filter in "normal" use usually don't stack up. Typically the best way is to chose a suitable lubricant, carry out a UOA programme to establish your optimum OCI and regularise your service routines
Even in my heavy trucks the "payback" for me with the MAN-Hummel centrifuge was at the third year of use (@700000kms) and in being able to retro-fit the centrifuge to another engine
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Originally Posted By: Doug Hillary
The economics of installing a by-pass filter in "normal" use usually don't stack up.
Yup, that's why I do the dual flow/hybrid. I think it cost me maybe $10 or $15 more per oil change. It's a lot cheaper than a bypass.
The economics of installing a by-pass filter in "normal" use usually don't stack up.
Yup, that's why I do the dual flow/hybrid. I think it cost me maybe $10 or $15 more per oil change. It's a lot cheaper than a bypass.
Im not sure the OP is looking for a payback. It's well know that diesel longevity can be greatly improved with a bypass/centrifuge system. To be honest filter is more important then what you dump into the sump.
With my customer having just a tick over 700,000 miles on his 97 PSD with the amsoil system I think he has been paid back. The time he spends in my shop to service the truck cost him more then the system. he travels coast to coast with a moving trailer grossing 24,000+. LBS. That poor truck has never seen less then a full load.
I have seen the numbers of the venturi type filters and am by far not impressed. Doug doesnt your OTR trucks have factory bypass units on them? I have a customer that heavy hauls and his has one...the filter is about as long as my dam arm and pretty pricy. He gets them from from our local pete dealer. they are baldwin
With my customer having just a tick over 700,000 miles on his 97 PSD with the amsoil system I think he has been paid back. The time he spends in my shop to service the truck cost him more then the system. he travels coast to coast with a moving trailer grossing 24,000+. LBS. That poor truck has never seen less then a full load.
I have seen the numbers of the venturi type filters and am by far not impressed. Doug doesnt your OTR trucks have factory bypass units on them? I have a customer that heavy hauls and his has one...the filter is about as long as my dam arm and pretty pricy. He gets them from from our local pete dealer. they are baldwin
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I guess the key here is normal condition. I can see a normal 30 mile commute financially a system would be impossible to recover.
we didnt rebuild the injectors on that 97 until about 450k. we also run a dahl 100 system on it and converted it to electric fuel pump.
He firly believes the added cost of the filtering has saved him thousands
we didnt rebuild the injectors on that 97 until about 450k. we also run a dahl 100 system on it and converted it to electric fuel pump.
He firly believes the added cost of the filtering has saved him thousands
Hi,
Smokefan1977 - There is no doubt that with by pass systems a centrifuge is better than a cartridge type. They are generally easier to service, can be quickly monitored for correct operation and have up to 600g of holding capacity. They are very popular in heavy Marine applications
Most heavy high speed NA diesel engines no longer have by-pass systems fitted as standard. Detroit Diesel for instance stopped fitting them well over a decade back
Some Euro diesel engines have a centrifuge system installed and these may be mandatory for OCIs out to 200kkms (125k) OCIs. My average OCI over all engines was 90kkms but the deciding factor in my case was always either Fe or Soot levels reaching established limits - not the lubricant's condition!
Modern FF filtration media by Donaldson etc enables extended OCIs with some ease
Of course over many years I have done much experimentation with filtering media and systems on a wide variety of engines - both petrol and diesel
Smokefan1977 - There is no doubt that with by pass systems a centrifuge is better than a cartridge type. They are generally easier to service, can be quickly monitored for correct operation and have up to 600g of holding capacity. They are very popular in heavy Marine applications
Most heavy high speed NA diesel engines no longer have by-pass systems fitted as standard. Detroit Diesel for instance stopped fitting them well over a decade back
Some Euro diesel engines have a centrifuge system installed and these may be mandatory for OCIs out to 200kkms (125k) OCIs. My average OCI over all engines was 90kkms but the deciding factor in my case was always either Fe or Soot levels reaching established limits - not the lubricant's condition!
Modern FF filtration media by Donaldson etc enables extended OCIs with some ease
Of course over many years I have done much experimentation with filtering media and systems on a wide variety of engines - both petrol and diesel
For a daily driver I would still suggest a Bypass. If your on the road Centrifuge would be my suggestion. I gather the OP is a daily driver. Centrifuge works much better at a steady state and higher RPM, which a DD doesnt see. A bypass will filter 10%+/- at any RPM.
Am I correct in my thinking her Doug?
Am I correct in my thinking her Doug?
sierraglen
Thread starter
Well, I installed an FS2500 in my 2005 Liberty CRD last week, then drove it out to CA (Sonora) to pick up a tractor (Kubota L245DT). I towed it back on a U-Haul car transporter, driving about 55 to 60 mph. MOPAR Filter, Rotella Synthetic. FS2500 owners manual says change the main and bypass filters after 5000 miles to "remove soot". It might be my imagination, but the oil is starting to look a little more golden in color. It was always black with soot before. I'm right about 1500 miles. I'll post the oil analysis I plan on doing at 5k miles. I plan to install the FS2500 on the Duramax next.
You cant go wrong with the FS2500. After you next complete OCI run that filter out. I usually run mine 30-40K. A 3 pack of filters will last me 100,000 miles usually
Hi,
Smokefan1977 - Sorry for my late reply to your questions directed to me as follows:
"Centrifuge works much better at a steady state and higher RPM, which a DD doesnt see. A bypass will filter 10%+/- at any RPM.
Am I correct in my thinking her Doug?"
A centrifuge filter is typically driven by oil pressure (internal oil levels may be controlled by air pressure where air is available) and are not really influenced by engine speed. They still function at idle!
Some early versions that were mounted within the crankshaft damper and etc may be influenced mor by OP. There are still some variations on the theme but OP is usually the trigger - once the engine has OP they work near their efficiency parameters set at the design stage
The maximum engine speed of my trucks was 1900rpm (max power 500hp @ 1500rpm) and max torque (1300lb-ft) @ 1200rpm
Smokefan1977 - Sorry for my late reply to your questions directed to me as follows:
"Centrifuge works much better at a steady state and higher RPM, which a DD doesnt see. A bypass will filter 10%+/- at any RPM.
Am I correct in my thinking her Doug?"
A centrifuge filter is typically driven by oil pressure (internal oil levels may be controlled by air pressure where air is available) and are not really influenced by engine speed. They still function at idle!
Some early versions that were mounted within the crankshaft damper and etc may be influenced mor by OP. There are still some variations on the theme but OP is usually the trigger - once the engine has OP they work near their efficiency parameters set at the design stage
The maximum engine speed of my trucks was 1900rpm (max power 500hp @ 1500rpm) and max torque (1300lb-ft) @ 1200rpm
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