Originally posted by SleeperZ:
It is there for emmisions only.
It does not help or hurt performance.

My experience;
I have had a breather filter on for over 40k miles and it has yet to effect my oil (every 3rd oil change I send to a lab for analysis and all reports have been nearly identical).



will it cause me to fail emisssions???i got the print out from my recent test. with the engine all stock (except for the K&N drop in) it read:

High Speed Emissions Test Results (25 mph, 2105 RPM)
HC (PPM): Standard: 132. reading; 12. result: PASS
CO%: Standard: 0.73 Current reading 0.03. Result: pass.
CO2%: Reading: 15.2
O2%: Reading: 0.1
NOx (ppm): Standard: 945. Current reading: 22. Result: PASS
Dilution: standard: >6 Current reading 15.2, result: PASS

Low Speed Emission Results (15 mph, 1956 RPM)
HC (PPM): Standard: 136. reading; 12. result: PASS
CO%: Standard: 0.76. reading 0.04. Result: PASS
CO2%: Reading: 15.1
O2%: Reading: 0.1
NOx (ppm): Standard: 1,045. Current reading: 46. Result: PASS.
Dilution: standard: >6 Current reading 15.2, result: PASS


so what does that mean? it passed so obviously its good, but how good? its a 1995, adn the tech says she had never seen a car this old pass this well...she was hawt too

ill post this in the Zetec maint forum in a separate topic as well.





Regards, Cole. Relegating to troll status sometime this week. New Whip: 1990 Lexus ES250. Old Hotness: 1995 GL MTX Zetec *IN TRIAGE* "I had a little friend once, but it dont move no more... "