Iridium Spark Plugs Set - 10 HP

[kniedelm9490]

Originally Posted by YALEROYNOT

i get 340-355 miles a tank with my 3.4

wow my car deffinitly doesnt get that and i have a 3.4

[kniedelm9490]

GLS Coupe GL Coupe GLS GX Coupe GL
Original MSRP $22,190 $18,795 $21,965 $17,210 $18,795
Engine 3.4L 170 hp V6 3.4L 170 hp V6 3.4L 170 hp V6 2.4L 150 hp 4 3.4L 170 hp V6
Horsepower (@rpm) 170 @ 4800 170 @ 4800 170 @ 4800 150 @ 5200 170 @ 4800
Torque (@rpm) 200 @ 4000 200 @ 4000 200 @ 4000 167 @ 4000 200 @ 4000
4-Speed Automatic Overdrive Std. Std. Std. Std. Std.
5-Speed Manual Overdrive N/A N/A N/A Opt. N/A
City MPG 21 21 21 21 21
Highway MPG 32 32 32 29 32
Seating 5 5 5 5 5

[cliffordwoeller]

ok so i have a problem some where ... because of the fuel issue ...so I have replaced my spark plugs which I paid at most i think 50 for a whole set... I have put a k&n airt filter in change my oil religiously,and oil filter have changed my fuel filter, hmmm what else do i need to look at to possibily fix this gas issue ?

[negolien]

I got a 2001 gls sedan with 50s stock of course and stock plugs and I get alomst 21 in mostly cummuter driving ie 15 mins of normal in town and 20 mins of bumper to bumper surface street traffic /shrug.

[kniedelm9490]

the tank is like 14 gallons but i swear ive never filled up past like 12.5 and the light is on E.. so idk

[Redog]

Originally Posted by cliffordwoeller

ok so i have a problem some where ... because of the fuel issue ...so I have replaced my spark plugs which I paid at most i think 50 for a whole set... I have put a k&n airt filter in change my oil religiously,and oil filter have changed my fuel filter, hmmm what else do i need to look at to possibily fix this gas issue ?

Well what kind of driving do you do? I used to get 18 to 20 MPG all city and I filled up and always put in between 9.5 and 11 gallons, so there is your 200, now I'm getting 19 to 21 combined city and highway since I moved to the burbs. I've been babying it the past 2 tanks and I got 21.4 and 21.6, I'm babying the 3rd right now and I have just over 1/2 tank (probably about 6 gallons empty) and I put 150 miles on the tank. That's appox 25 mpg, if I'm right. That includes a road race today and 80 on the NJ turnpike just to keep up with traffic.

With the K&N, at 65 I'm under 2000 RPMs

[cliffordwoeller]

hmmm well i have been a pretty radical driver but since my first car show last week and joining this site I have calmed down cause I have realized how stupid I look especially since I am 26 and doing it so this tank i have right now is the first tank I have been for the most part a normal driver although I have caught my self doing quick accelerations which I am trying to break that habit now

[Cliff8928]

Ya, stop the hole-shots all over the place. My Alero (ecotec) can easily get at least 300/tank (usually 25 MPG) in town and i can get over 400 on the hwy.

If I drive the crap off my 3400 around town I have gotten it down to like 14 MPG or something like that (maybe less, I usually don't track that one)

[cliffordwoeller]

hmmm ok so would my 2.4 having near 130,000 miles be part of the problem ? and at that many miles what should I be replacing inspecting,or changing ?

[kniedelm9490]

Originally Posted by Cliff8928

Ya, stop the hole-shots all over the place. My Alero (ecotec) can easily get at least 300/tank (usually 25 MPG) in town and i can get over 400 on the hwy.

If I drive the crap off my 3400 around town I have gotten it down to like 14 MPG or something like that (maybe less, I usually don't track that one)

ya at this point the most i get from a tank with driving like a nut is like 225 so idk its a hard habbit to get rid of

[cliffordwoeller]

isnt that the damn truth even though I know all i am doing is shaving a few seconds at the most off of my time to my destination

[kniedelm9490]

yup itryed driving slower tonight but more ppl kepted riding azz

[WhiteV6]

Iridium plugs have less resistance, so its like throwing a hotter coil on your motor. This is why they claim 10hp, for those with weak ignitions. They are also self cleaning and last a long time. Is it worth the money? In the long run, yes. Double laser platinum? I dunno what that means but I wouldn't use platinum plugs, or anything that says bosch on my vehicle.

[cliffordwoeller]

well mine arent bosh and from the sounds of it bosh isnt that good

[Redog]

^^ Please type in English

[cliffordwoeller]

lol it was english I was just a lil or a lot sleep deprived lol

[kniedelm9490]

Originally Posted by WhiteV6

Iridium plugs have less resistance, so its like throwing a hotter coil on your motor. This is why they claim 10hp, for those with weak ignitions. They are also self cleaning and last a long time. Is it worth the money? In the long run, yes. Double laser platinum? I dunno what that means but I wouldn't use platinum plugs, or anything that says bosch on my vehicle.

mabye ill look into it but it seems alittle expensive for what it is

[cherrington17]

Originally Posted by YALEROYNOT

i get 340-355 miles a tank with my 3.4

w/ what mods?? i know you have an exhaust, probably a cai? anything else?


i average 25mpg, and its usually split 50/50 hwy/city. i got in the mid 30s when i was going to ASS (all highway)

if your car is high miles, you can try throwing a can of seafoam through it, see if that cleans it up and improves your mpg.

[BlackJack]

so I guess 15mpg in town isn't all that good? Maybe it has something to do with my tailpipe looking like a military-grade flame thrower (without using a spark kit).

[Cliff8928]

Originally Posted by kniedelm9490

mabye ill look into it but it seems alittle expensive for what it is

For Iridium plugs, use the ACDelco #41-101. They're the factory original plugs for the 3400. They're made by NGK.