Daniel60

An acquaintance at work says they will help you if you get a ping sometimes and will increase your horsepower. Right now my car is running great however I like to try these if they increase the horsepower and also I run into cheap gas from time to time. Anyone have these? Also what about the oil that is suppose to give you an extra 6 horsepower and not required to be changed for 7500 miles. Anyone. Thanks. The oil that this guy is pushing to me is ams oil.

CrazyAl

Spark plugs have different heat ranges. Heat range has to do with the temperature of the electrode on the spark plug, which in turn keeps the spark plug clean, without pre-igniting the air/fuel mix.

sometimes you have to change heat ranges if your engine tuning is drastically changed (such as with a supercharger or nitrous). It is NOT a performance mod.

Read more about it here:

http://www.ngksparkplugs.com/techinf...000&country=US

Some oils can result in a slight HP gain. I do not like Amsoil personally. I tried it a few years ago and it did seem to give a little more power, but it also increased my oil temps. No thank you. Then again other people swear by it.

Any good quality synthetic oil can give you a long service life, such as 7500 miles. However, the real weak link is your oil FILTER, not the oil itself. I would stick with a more frequent change regimen just to make sure your filtration is up to snuff. It's cheap insurance.

Haulupki

I think there are only (2) types of plugs for our cars HT1 's which are stock, and HT0's which are "colder" heat range. HTO's should be used for cars with some kind of power adder. I may be wrong about this, but these are the only types of spark plugs that I know of.