Thread: The Best Spark Plug Out There

Yep I will agree with that. In fact I was a bit pissed with getting 19/20mpg with light driving and no flooring!!!

But in all honesty, I would usually get 18MPG with my old NGK's. Now this is 18MPG with half city half highway and redlining the car like 20 times throughout the tank.

With all the differences that can happen, I tried to drive only about 50 miles, now this does leave a lot of room for error (like redlining the car once will throw the numbers off big time), but this left less room for error with atmosphere etc.

I now am using the NGK Iridium plugs and have them indexed, and I think they are doing much better.

Here are the rough numbers

I drove 17 miles in the city, with the car seeing the redline about 6-8 times (I had to get it out of my system from not redlining the car for the above experiments ), then I took the car on a trip up north.

The needle was at the first quarter mark at 90 miles. This is fairly good compared to what it was in the past, especially since I redlined the car so many times.

So if I'm lucky the car was getting about 33mpg total

Now I even did my best to leave the oil as is and not change it, etc.

Now I am keeping a log, spreadsheet, of all the gas receipts and miles driven. I'm also listing the mods and changes to the car and weather.

This way I can keep a log of when the MPG's dropped/rose and why.

Vadim have you heard about those E3 spark plugs? just saw a commercial and reminded me of this haha didn't know if you had looked those up yet

Yep seen them but dunno much information about them haha.

I got some BKR6E's to try out compare to V Power BKR6E-11's and NGK Iridium BKR5IX, and Bosch Platinums haha.

So will see which one gives me best MPG's. Power seems to be the same for all plugs haha

After some indexing testing I got some data results. Here is the post with the information.

geeze vadim i didnt know your mpg was soo horrible. haha no offense but dang, with the mods you have done i would figure at least high 20's maybe even 30+. my first se-r all motor with bolt ons made over 30mpg all the time mixed driving and punching it a couple times too. On the highway i saw upper 30's and even 42mpg and 40mpg on two seperate occassions. I know weight of the vehicle factors in being it takes less effort for the motor to get a lighter car going and keep it steady but still. That mpg is worse than some V8's out there. You might have leaky injectors or dirty injectors causing problems. Neways even in my turbo se-r i get over 30mpg on highway and high 20's around town punching it occasionally. I would be pissed if i only got 18mpg. That would suck

the pulstars have interested me a i have seen them in alot of the performance mags but i donno how much better they would work with our engine than the ngks esp becuase the prices of the ngks are optimum

Well the wait is not as big of a factor, I mean look at G20's they are about 2900lbs and get similar gas mileage as the SE-R's.

I think I do have a leaky injector, and probably an evap vacuum leak.

This is why I have been anal about my MPG's hehe

But I will say, it seems like the regular BKR6E's give me the worst gas mileage. After I'm done with the index test, I will put my Bosch +2 plugs in and see how they do. With my old BKR6E-11 spark plugs, the Bosch +2 made 5+ more MPG!
Another words, instead of 23MPG like I got in this test, I would be getting 28MPG...




Yeah true, I don't think the Pulstars are really worth it... but dunno...

I get 30-32 mpg on my turbo P11 and I'm using bkr6e's. Copper all the way!

Pretty good numbers for turbo and heavy car

yeah thats what i mean, and i have no emissions crap either at all. didnt have it on my old se-r either. I think something else is up. i mean the milage was not just babying it either, thats getting on it a couple times here and there. the highway milage is just nice steady throttle the entire way but the in town milage is very mixed, haha