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


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus First Generation > DURATEC Performance (2003-2007) > Engine Oil Weight

DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
FocusFest

Thread: Engine Oil Weight Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
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, Ford Focus RS 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:
What I Drive
Year, color, and model of your car. Example: 2003 Pitch Black ZX3
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

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)
01-15-2017 04:57 PM
1turbofocus Synthetic only

Tom
01-15-2017 11:20 AM
Fernando_221
Quote:
Originally Posted by 1turbofocus View Post
I use the mobile 50 in the summer and 40 in the winter , all synthetic

The piston slap isnt from the oil and thicker oil wont correct it , you either have over heated the pistons as some point and they have collapsed ( skirts ) or the bore was done to big and the piston is slightly loose when cold and the piston swells when hot and the noise goes away

Tom
The pistons are fine, I checked the skirts diameter before installing then, same measures as new, these pistons are a little smaller than the stock ones, it has 87.42mm and stock has 87.48mm, bore is 87.50mm.
Do you use 50 oil mineral or synthetic?

Thanks Tom
01-14-2017 06:28 PM
1turbofocus I use the mobile 50 in the summer and 40 in the winter , all synthetic

The piston slap isnt from the oil and thicker oil wont correct it , you either have over heated the pistons as some point and they have collapsed ( skirts ) or the bore was done to big and the piston is slightly loose when cold and the piston swells when hot and the noise goes away

Tom
01-14-2017 10:50 AM
Fernando_221
Quote:
Originally Posted by felixthecat View Post
Whats your clearances? stock pump? I for sure wouldn't go thicker......
Clearances are stock, stock pump. I have some piston slap when cold, when hot it's gone, no piston slap.
01-14-2017 10:42 AM
felixthecat
Quote:
Originally Posted by Fernando_221 View Post
Sry to revive this old thread.

What oil would you use on a turbo Duratec forged (pistons and rods) making around 300whp? Here in my city ambient temps are around 86 to 105F most part of the year, it's very hot. I'm running a 15w40 viscosity, should I go thicker?

Thanks
Whats your clearances? stock pump? I for sure wouldn't go thicker......
01-14-2017 10:40 AM
Fernando_221 Sry to revive this old thread.

What oil would you use on a turbo Duratec forged (pistons and rods) making around 300whp? Here in my city ambient temps are around 86 to 105F most part of the year, it's very hot. I'm running a 15w40 viscosity, should I go thicker?

Thanks
08-04-2012 02:10 AM
oblivion2kx Heavier oil should be run when the car ages. If you have 125K+ on the car, run 5w 30. If you just rebuilt the engine, run 5w 20. More worn out parts need better lubrication to resist further wear.
08-03-2012 11:53 PM
felixthecat I'll stick w/ 5w20 Mobil1 w/ a FL842 filter.
08-03-2012 07:06 PM
Outlaw5.0
Quote:
Originally Posted by kylesvt720 View Post
A)You are talking a motor spinning over $10k rpm.
B)You are talking about people looking for every possible edge in performance, with no care for longevity of the motor.
These engines are rebuilt after every event, and often times have valves and other components swapped in between individual runs.
Yes I know, I have friends on a few teams. The point is 5w-20 will not hurt our engines.
08-03-2012 01:21 PM
kylesvt720
Quote:
Originally Posted by Outlaw5.0 View Post
I wonder if anyone takes into account NHRA prostocks use very light oil..............less than 20wt, infact down in the 10wt range. Granted they change oil after every pass or two.
A)You are talking a motor spinning over $10k rpm.
B)You are talking about people looking for every possible edge in performance, with no care for longevity of the motor.
These engines are rebuilt after every event, and often times have valves and other components swapped in between individual runs.
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 07:39 AM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : 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 Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1