Ford Focus Forum, Ford Focus ST Forum - Reply to Topic
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus Third Generation > MK3 Focus > Purolator Oil Filter Question

MK3 Focus The place to chat about general questions, window tinting, exterior body, interior and lighting upgrades for the third generation 2012-Current Focus.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Thread: Purolator Oil Filter Question Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
01-06-2013 11:52 PM
felixthecat
Quote:
Originally Posted by UnleashedBeast View Post
Any oil filter with a 3/4 x 16 thread, outer diameter not larger than 3.1", and an internal bypass valve would work. You could use a filter up to 5" long or so. I haven't measured the distance between the oil filter mount and the bottom cover yet, but with the eye....5" long should fit. Increasing the oil filter size will have positive effects on the engine.

1. More media surface area = less resistance to flow
2. More oil capacity = longer oil change interval
3. More filtering capacity = longer oil change interval



Assuming the oil pressure sensor is before the oil filter, a pressure drop would be a great thing.

If the oil pressure sensor is after the oil filter, then it would be a problem.

A longer filter with more media surface area would most likely decrease resistance to flow, which in turn would decrease back pressure in the oil system. This is a good side effect.
Provided your foci isn't lowered & you don't park over park chaulks & curbs. Lot most people I see, where the front end of their car is way over the curb. Thats why I use a fl842 or a TG16 filter. Shorter then a 400 & tad longer then a 910 & bigger diameter then both of them, & fits great. It'd be great if there was a horizon filter mount instead of a verticle one.
01-06-2013 10:00 PM
UnleashedBeast Any oil filter with a 3/4 x 16 thread, outer diameter not larger than 3.1", and an internal bypass valve would work. You could use a filter up to 5" long or so. I haven't measured the distance between the oil filter mount and the bottom cover yet, but with the eye....5" long should fit. Increasing the oil filter size will have positive effects on the engine.

1. More media surface area = less resistance to flow
2. More oil capacity = longer oil change interval
3. More filtering capacity = longer oil change interval

Quote:
Originally Posted by dan50 View Post
If you're positive they are identical in all other respects, including how the bypass valve is calibrated, and the additional filter media doesn't cause an oil pressure drop, go for it.
Assuming the oil pressure sensor is before the oil filter, a pressure drop would be a great thing.

If the oil pressure sensor is after the oil filter, then it would be a problem.

A longer filter with more media surface area would most likely decrease resistance to flow, which in turn would decrease back pressure in the oil system. This is a good side effect.
01-06-2013 08:11 PM
dan50
Quote:
Originally Posted by scada View Post
I'm not sure what it means not to have a bypass valve. I imagine that cars can take the 842 may have some sort of internal device.
A bypass valve comes into play when the engine is started when very cold or when the filter becomes clogged because of sludge or being in use too long. Under these conditions, oil flow may stop at the filter, starving the engine of lubrication. The bypass valve opens to allow unfiltered oil to flow to engine parts, as this is tons better than no oil at all.

Some engines have a bypass valve built into the oil filter mount, so could specify a filter that had none. On the other hand, if a car doesn't have a built-in bypass valve, using a filter than didn't have one either would be a really, really bad idea.
01-06-2013 06:52 PM
scada
Quote:
Originally Posted by felixthecat View Post
So that means all the Jeep guys using FL842's need to change out they motorcraft filters out pretty often, huh? wow.
I'm not sure what it means not to have a bypass valve. I imagine that cars can take the 842 may have some sort of internal device.
01-06-2013 06:50 PM
felixthecat So that means all the Jeep guys using FL842's need to change out they motorcraft filters out pretty often, huh? wow.
01-06-2013 06:47 PM
scada From the AutoZone website:

Part Number: TG16
Weight: 0.8 lbs
Anti-Drain Back Valve: Yes
By-Pass Valve: Yes
Diameter (in): 3.06
Height (in): 4.41
Filter Type: Oil
Filtering Material: Cellulose/Synthetic Blend
Gasket Material: Nitrile Rubber
Non-slip Grip: Yes
Oil Filter Style: Spin-On/Canister
01-06-2013 06:45 PM
scada
Quote:
Originally Posted by felixthecat View Post
So the motorcraft FL842 or similar, does not have a bypass valve? Whats that mean? The oil is always flowing thru the filter? What? Right now I have a TG16 fram on, which is the same as a FL842.
Looks like the Fram TG16 has a bypass valve. I am going by this on the FL842:

Brand:Motorcraft
Manufacturer's Part Number:FL842
Part Type:Oil Filters
Product Line:Motorcraft Oil Filters
Summit Racing Part Number:ACF-FL842

Oil Filter Style:Canister
Height (in):3.790 in.
Outside Diameter (in):3.660 in.
Filter Bypass Relief Valve:No
Anti-Drainback Valve:Yes
Thread Size:3/4-16 in.
Gasket Outside Diameter (in):2.834 in.
Gasket Inside Diameter (in):2.462 in.
Quantity:Sold individually.
01-06-2013 06:42 PM
felixthecat
Quote:
Originally Posted by scada View Post
Does not look like an FL842 will work, no bypass valve.
So the motorcraft FL842 or similar, does not have a bypass valve? Whats that mean? The oil is always flowing thru the filter? What? Right now I have a TG16 fram on, which is the same as a FL842.
01-06-2013 06:28 PM
scada Does not look like an FL842 will work, no bypass valve.
01-06-2013 06:25 PM
felixthecat
Quote:
Originally Posted by scada View Post
I did a little more research. Looks like the FL400S has a 20psi bypass. The FL910S has a 14psi bypass filter.
Conclusion: Motorcraft FL-910S 14psi bypass
Purolator PL10241 12-15psi bypass
only use Purolator PL20195 12-15psi bypass if you want a longer filter.
What 'bout a FL842 or similar?
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 12:14 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.