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Passed Smog - Here's How I Prepped


I folllowed up on several of the tips mentioned here to prepare for the smog test and what a difference that made. Thanks everyone. Last year, the car nearly failed HCs (it measured 54 and the limit was 56). This year? HCs were at 13. The other measurements were equally clean. The shop where I had this done said the car was running very very clean. It's a huge relief.

Here's what I did to prepare:

-12 oz bottle of Chevron Techron Fuel System Cleaner concentrate mixed with 12 gallons of premium gas (Shell)...

-per SRK's instructions, put it in second and ran it on the freeway 3K to 4K RPM for a good 2o minutes with the Techron treated gas still in the tank...used up all the techron treated gas (until the reserve light came on)

-filled with another 1/2 tank of gas (no Techron this time) and ran through most of that, including another "Italian tuneup' on the freeway for 20 minutes...

-changed the oil twice...once at end of December, and another the day before the test...in part because I read it's a good idea to change the oil as soon after using fuel system cleaner as possible). and I also wanted to switch out and use an OEM oil filter...

-wiped out the interior of the tailpipes...

-installed new air fiilter (OEM) a day before the test...

-filledl up with gas (again) so as to go in with a nearly full tank (takes less time to pressurize it for the evap test)...

-warmed up the car the day of the test by taking another freeway drive for a good 30 to 40 minutes, some of it also in second gear, then off the exit and a few blocks to the smog test stsation. no cars in front of me, so they started the test without turning the car off. whoo hoo. we were done iin less than 20 minutes.



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