Well, I am trying to find anything and everything to get a little better economy out of my tacoma. So I was wondering if the bosch platinum 4 point plugs are worth it. 4 contacts should be better then 1 when burning the fuel right. Has anyone else tried these yea I know they have a 6 dollar price tag but if i could add 30 miles to a tank of gas they would more then pay for themselves. Remember the key here is no so much performance but economy so anyone have personal experience with the 4 way. I tried the split fires a few years ago and it improved my economy a bit but I was wondering about these before I install them.

 

From what I have read, stay away from the bosch +4 plugs. You may want to do a search to see the reasons. Stay with Denso or NGK

 

BTW is this for your Tacoma? If it has the 3.4L the stock plugs are dual electrode.

 

Ditto on the search. But they're really not worth it IMHO. Best way to save gas is to drive conservatively.

 

well this questions really depends on how many miles are on your truck, and if your stock plugs are dirty and running inefficently. if the plugs are dirty, then yes replacing them with new ones will yield better gas milage, but if they are fine, replacing them with do nothing.

As far as the bosch platinums go, I would recommend just buying stock ones. I used the 2+ and the 4+ and found no significant increases in performance or gas mileage. Yeah, they do the job, but at 6-7 dollars a pop, there is no added benfit to the added costs.

 

I've generally found that spark plugs are worth having in my vehicles. Although I use WAY less fuel without them, I tend to get much better 0-60 times when they're installed.






Sorry, couldn't resist.

 

I've always stuck with Nippondenso plugs. They're good for about 30K in my truck. I used the Bosch platinum in my wife's Subaru and they seemed to work OK, but didn't change the mileage.

 

Fair is fair but I don't consider rubber floor mats a vehicle modification.

 

I used the champion truck plugs, Had no problems with them.

 

save the bosch for volkswagens. the only plugs i use on toyotas are NGK or denso.

and autolites and champions are for lawnmowers

 

Neither do I. It's a comment on the sad state of my stock runner.

 

not to mention, ever seen an arc travel(in welding or otherwise)? it's not going to split up between the 4 contacts like they'd like to make you thing. it's just going to jump to the most convenient one, so it's a waste of money. you only need 1 electrode.

 

NGKs or Nippondenso are my choices.

 

i had the bosch plugs in my truck before i had a Timing chain installed... when i got it back my TOYOTA MECHANIC told me "take the crappy Plug out and get some at the parts counter" I bought some Ds but they also suggested NGKs

 

ngk or denso in yotas... nuff said...

 

The spark will travel to the post with the least resistance so it will only use 1 of the 4 posts on your plug. And dont go get some hi-dollar ignition system either with 31.1 Gigawatts of power and multiple stikes, because what MSD and the like dont tell you is that the plug gap actually determines how much spark energy is sent out; No more no less, doesnt matter how much power it makes or how much it costs.
Save you money for gas. And buy ND plugs.

 

actually MSD ignitions tend to have a longer duration spark that'll burn more fuel if you have a richer charge(like using a weber carb). you just won't see any advantage until you open up the plug gap...

 

The parts manager at my dealer used to try to get me to change the Bosche +4's in my 3.0 and swap in NGK's or Denso's. She used to tell me they were too hot. Those plugs lasted 100K miles. Good plugs. Gas mileage averaged 19 and still averages the same with Bosche platinum single electrode.

The '99 got 19mpg on my first tank refill. I called the original owner and talked about the maintenance. The plugs were the originals with 60K miles. I swapped in Bosche platinum +2's. Next tank, 21.3 mpg.

I think plugs are pretty much plugs. They gotta spark. The difference between regular plugs and platinum or iridium is the longevity of the plug. Stock plugs erode faster and should be changed about every 30K. I did 100K on the Bosche +4's and they still ran great.

 

I bought the denso iridiums very pricey, but had very good luck and performance in the camary...I haven't put enough hr's on them in the truck yet

 

No, YOU only need one electrode. The 3.4 is spec'd for dual electrodes and specifically warns against singles. I had an Rx7 that used four electrodes and once made the mistake of putting in singles. Ran horrible.