should i get a bypass filter?

[Robertslowpoke]

good morning!!!

OK, I ask too many questions! thanks for all your help on all topics!

from the LITTLE I have read, i think that SOME of the engine oil goes through a second filter, which can remove fine particles. I don't know how worried I am about that. Second a preluber ensures that the cold engine will have oil pressure right away. I am a mechanical dummy, but have access to 2 great mechanics.

1. will the bypass filter REALLY help? can i approximate that with Mobil 1 oil and filter every 2000 miles?
2. will the preluber help? my garage is heated to at least 40 degrees all winter, and i use Mobil 1 oil only/

sorry for the dumb questions, i mean no offense. the idea of better filtration is intriguing! my friend had a dodge truck, cummins diesel. he is a gifted mechanic, changes oil very often. he got rid of the truck, when it rusted in half, with 340,000 miles.

best,


bob
and thanks!!!!

 

[chubbs1]

What do you mean by "can I approximate that with Mobil 1 oil and filter every 2000 miles?"

A bypass filter CAN really help and I think they should be installed by manufacturers on all vehicles. It dramatically extends the OCI.

 

[Robertslowpoke]

thanks! i believe what i was trying to say, is that, if i change the oil very very often, it would tend to remove very tiny particles not caught by the normal filter.

to think about the money, I believe that you should spend a little money to maintain a $40,000 cadillac DTS. i plan to keep it many many years, it is a 2008. saving money on oil changes is not too clever. the question is- how MANY changes per year! 7.5 quarts of Mobil 1 and filter, say it costs $80, changed by the garage. four times a year $320. that could be reasonable to keep a car 10 years or more! i drive 10,000 miles a year.

would 2 or 3 changes be enough? probably!

would 6 changes be a waste? probably!


what i am trying to ask is, is a bypass system a waste?

thanks!!

best

bob

 

[demarpaint]

I can't speak for by-pass filters from experience but a visit to the used oil analysis section will tell you they work. I do have a pre-luber and IMO it is great for a vehicle which isn't driven often. Flip a switch and wait till the oil pressure builds, then fire up the engine. No dry starts. If you have the money, and can do the installations, or pay someone to do them, go for it!

Hard to say if a 2000 mile OCI will accomplish the same thing as a by-pass filter and a pre-luber. Changing oil early can't do what a pre-luber can by oiling the system before the engine starts. Oil and filters work better with some miles on them, changing at 2000 miles is too soon. So you'll be wasting oil, filters, and money, accomplishing nothing! JMO

 

[Robertslowpoke]

thanks demarpaint! i recall your name from my other dumb questions!!

1.exactly which pre luber do you have?

2. easy to install?

3. is it worth it on a daily driver? drive 7 miles to work, lots of short trips. cold here in winter,

best

bob

and thanks

 

[HTSS_TR]

This 39k miles of mostly highway UOA is of Honda S2000, it shows that bypass filter and a prelube pump did help a lot.

https://bobistheoilguy.com/forums/threads/amsoil-0w-30-honda-s2000-39-524-mi-oci-w-bypass.156018/

 

[demarpaint]

Originally Posted By: Robertslowpoke
thanks demarpaint! i recall your name from my other dumb questions!!

1.exactly which pre luber do you have?

2. easy to install?

3. is it worth it on a daily driver? drive 7 miles to work, lots of short trips. cold here in winter,

best

bob


No questions are dumb!

My preluber is over 20 years old and IIRC came from a company called Lubrication Engineers. The link in the post above shows another pre-lube set up which works exactly like mine, only with a different kind of pump, accomplishing the same thing, and a great idea!! Setup is not hard, my pump is under the hood fender mounted, with a toggle under the dash. You Tee off the oil sending unit. I have a specially made Octagon plug which replaces the oil drain plug, a nipple comes out of it, and it has an allen screw at the lowest point which I remove to drain the oil. Oil is picked up from the pan, goes through a fine mesh filter in the pump, then into the oil sending unit. I flip the toggle, wait for oil pressure then start the engine. I could also rig up a quick disconnect and pump oil directly into a container for oil changes, but rather just take the Allen screw out. You can probably accomplish the same thing with hardware store bought items. I mounted my pump on rubber bushings so it doesn't make wild noises when pumping.

Another nice feature is you can flip the toggle after a long trip and use oil to cool the engine after shutting it down. I don't really do that though.

I installed it because my van typically sat for weeks w/o being used, this eliminates dry starts. Remember oil from the late 1980s, and 1990's isn't as good as the oil today.

Many people consider these things overkill and a waste of time and money. For me it was a hobby and I planned on keeping the van a long time, quite Frankly I don't care what people think. Anyone that sees this van or has worked on it wants to buy it, and knows what kind of nut job I am when it comes to taking care of things, LOL. I also have an inverse oiler set up in it as well, which I disconnected but plan on hooking it up again.

Any other questions, just ask! HTH

 

[Steve S]

The main determining factor on how long an engine lasts is the amount of miles put on the engine when it is at a operating temperature. Then the load the engine is operated at. There are articles on "million mile engines" posted on the internet on occasion and it seems that most use quick change oil and filters. What is really nice about Bypass oil filters and I am talking about the sub micronic types is that they prolong the oil change interval which is a really nice money and time saving convience if you are really putting on the miles. You are asking a question that you have already answered your question. What is the 2000 mile mile magic supposed to mean? Mobil 1 oil at 200 mile intervals is the wrong kind of oil. Mobil 1 is for at least 10,000 mile oil change intervals.

 

[Steve S]

Originally Posted By: Robertslowpoke
thanks! i believe what i was trying to say, is that, if i change the oil very very often, it would tend to remove very tiny particles not caught by the normal filter.

to think about the money, I believe that you should spend a little money to maintain a $40,000 cadillac DTS. i plan to keep it many many years, it is a 2008. saving money on oil changes is not too clever. the question is- how MANY changes per year! 7.5 quarts of Mobil 1 and filter, say it costs $80, changed by the garage. four times a year $320. that could be reasonable to keep a car 10 years or more! i drive 10,000 miles a year.

would 2 or 3 changes be enough? probably!

would 6 changes be a waste? probably!


what i am trying to ask is, is a bypass system a waste?

thanks!!

best

bob
once a year with M1 should do the trick you are throuing away big bucks changine syn oil so often . This is my normal response. You believed all the hype about syn oil to make you spend triple the amount for it yet why do you not believe that syn oil lasts at least double the conventional oil interval

 

[azsynthetic]

I am a true believer in bypass filter and have been using Amsoil BP setup since mid 80's. All of my vehicles have them and I do extend my OCI out to at least twice the manufacturer's recommendation.

 

[Robertslowpoke]

THANK YOU ALL VERY MUCH!!!!

the last oil change in the Caddy, for the first time ever, i got an oil analysis. alearning experience!!!! the garage used an unknown synthetic oil, not Mobil 1. i put around 2000 miles on that oil,. short 7 mile drive to work. blackstone said to do 5000 miles next time and test. they said lots of life left in the oil

so, i got Mobil 1 and a good wix filter, will go 5000 and test. i am learning a lot. from my million dumb questions here, I learned to attack ALL parts of the car maintenance. so, i changed transmission fluid and filter at 30,000, radiator fluid, brake fluid and bleed all 4 wheels, steer fluid, cabin air filter and engine air filter. i detailed the car with my friend. changing oil is not enough!!
once a week take on highway for 40 minutes. i understand this gets the water out of the oil, etc.

Steve S: thanks! i will go 5000 miles and retest oil. good advice!

Demar paint:thanks for ALL your help on lots of topics! car care IS a hobby for me now, and it might result in my 2008 Caddy surviving over a decade here over the winters!! my wife got asked about her "new" car.

it is a 2002 Lexus es 300. i felt proud of myself!!

thanks!

have a great day!!

Bob

 

[slalom44]

It looks like Demarpaint's setup is very similar to mine, and I start my preluber by flipping a switch under the dash like he does. The link that HTSS_TR gave above is my used oil analysis, which shows that a bypass and prelube setup can do a pretty good job.

But if you're not putting many miles on your car, you're not going to see the benefit of such a setup. And I wouldn't go 40,000 miles on Mobil 1 because it tends to shear. There are several oils more suitable for extended OCIs.

I went the cheaper route with my prelube pump. I use a ShurFlo pump that I picked up at Northern Tool. The downside is that the actual pump has a plastic housing and won't last forever. After about 175,000 miles I had to replace mine because it started taking longer to get pressure, especially in the winter.

 

[demarpaint]

slalom44- 175,000 miles out of the pump is awesome, do you have a link to the actual pump you used? Mine is no longer made.

 

[slalom44]

The pump is a ShurFlo model 2088-343-435, which replaces 2088-343-135. They're identical pumps with different packaging. I got mine from Northern Tool Online. This pump has a built-in check valve and a pressure switch that turns the pump off automatically when pressure is above its preset (adjustable) range.

This pump isn't intended for use with hot oil but the specs suggested that it would work. I called ShurFlo Tech Support before I first installed it and their Tech Rep said that it should work fine. I guess he was right. But I should mention that I just use it to start the engine and not continuously run with hot oil. Occasionally I forget to switch it off and the pump kicks in when idling at a stoplight or when I turn the engine off. But I installed an LED on my A-Pillar that goes on when the pump is running. When I hear the slight humming of the ShurFlo pump and see the LED, I realize I left it on and then I flip the toggle switch to turn it off.