what is the difference between normal and performance spark plug, and which would u recommend?

Question

i have a 2000 mercedes s430, i have reached the 100,000 miles mark on it and i was told that i need to change my spark plugs, i was looking online and i found many different types of spark plugs, and i was wondering which one would be the best to go with, the original (bosch) or a preformance one, (many different brands) , i would really appreciate it if someone could help me and tell me the diffrences and recommend a type.

Answer 1

The High performance plugs provide a stronger spark basically.Will improve your mileage and power a tad,but for what you need I wouldn't spend the extra $

Answer 2

The design of the sparkplug is different, but all it does is improve the "reliability" of the spark. A spark is a spark, nothing more is needed. I'd just stick with the Bosch. I have not seen any improvement by using performance plugs vs originals. Now if you had a true race car, like a Corvette, my answer might be different....

Answer 3

There are a couple of differences. Some provide a larger area for the sprark to make contact with. some provide a hotter spark. Usually the extra money that you spend on them does not make up for the performance. Personally I put NGK spark plugs in everything that I own. They arent the cheapest or the most expensive but in my experience they are the best.

Answer 4

None whatsoever. Performance spark plugs are pure snake oil. Get high quality platinum versions of the originals.
Car makers don't spend hundreds of millions of dollars improving engine performance 5% when two dollar spark plugs would have done as much.

Answer 5

sounds like the plugs you have been using are working fine.100,000 miles is good. don't change what works.