WA registered Xj in CA smog info needed

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Nov 23, 2013 | 02:21 PM

#16

skife

Seasoned Member

Joined: Nov 2013

Posts: 469

Likes: 3

Model: Cherokee

Quote:

Originally Posted by highmileage

If you like your exhaust valves "DO NOT" do this.
Chevron mid grade will do the job just fine and if the HCs' and NOX are high the first two things to look at are the O2 sensor and the exhaust manifold for cracks.

Quote:

Originally Posted by xjzaped

E85 burns way hotter than gas…

myth
e85 actually burns cooler than gasoline
it actually burns alot cleaner too, which is why it will help pass a smog check.

Nov 23, 2013 | 06:48 PM

#17

xjzaped

Member

Joined: Jun 2011

Posts: 165

Likes: 0

From: Lubbock, TX

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by skife

blah blah blah blah blah, "E85 is bad for your engine, E85 will eat your fuel lines, blah blah blah" do you have proof it will harm the exhaust valves? or just crap you've read that somebody else has posted on forums?

myth
e85 actually burns cooler than gasoline
it actually burns alot cleaner too, which is why it will help pass a smog check.

Thermodynamics. E85 has more specific energy than gasoline. To get the same amount of energy output, it needs a smaller temperature difference from the intake air temp and the exit air temp (so yes, to match gas it burns cooler). However, it's getting the same difference as an engine running gas. More energy output, which comes out to power but it'll burn hotter.

I'm well aware it burns cleaner.

Last edited by xjzaped; Nov 23, 2013 at 06:51 PM.

Nov 23, 2013 | 07:21 PM

#18

highmileage

CF Veteran

Joined: Oct 2011

Posts: 1,268

Likes: 1

From: Bakersfield CA

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by skife

blah blah blah blah blah, "E85 is bad for your engine, E85 will eat your fuel lines, blah blah blah" do you have proof it will harm the exhaust valves? or just crap you've read that somebody else has posted on forums?

Yes I do, why don't you go and read the consumer reports articles on it, and the ones from United Labs, or the articles from the AAA oh and the traffic and hwy people.
Alcohol wasn't made to burn in low compression engines ask any racer worth his mustard. It causes the cylinder to run dry due to alcohols long burn at low compression, helping to causing the exhaust valves to beat themselves to death. E-85 vehicles have about 3 to 4 extra sensors to deal with the affects of running alcohol in low compression engines.

myth
e85 actually burns cooler than gasoline
it actually burns alot cleaner too, which is why it will help pass a smog check.

Yes it does burn cooler, due to the longer burn time. And if your having to run this fuel to pass smog something else is wrong.

Nov 25, 2013 | 05:56 PM

#19

ck1

Seasoned Member

Joined: Oct 2009

Posts: 407

Likes: 3

From: Murrieta, California

Year: 1991

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by 1SIC4X4

You will need all the emission parts the jeep came with. Should be just cat conv. Stock headers and intake. No aftermarket cold air intakes..
They will smog anything in cali. Make sure you got a good gas cap. Not locking one, they never hold a seal during the vacuum check.
And by the way they got rid of the gross pollutor reference.
I deal with this every other year for my family. Specialy on my brothers lifted jacked up Passport.
Im now smog tech in nevada. Came from cali.

not to beat a dead horse but you might want to bone up on california laws before you say that the "gross polluter reference" has been done away with. it is alive and well...google it and you will see that it is still there on the CA BAR website.....not trying to call you out but here in cali it is a nightmare to get a vehicle to pass once it is labeled..I know as I have had a few of them over the years...anyway just some advice to all you California XJrs looking to smog anything over 10 years and or high miles...pay for the pretest first to avoid this.