What are the best spark plugs for fuel economy?

What are the best spark plugs for fuel economy?

Some spark plugs are claimed to increase horespower. … If they could increase horsepower by using a slightly more expensive spark plug, they would. The biggest effect on horsepower comes from the design of the engine (combustion chamber and intake system) and ignition timing.

What is the best spark plug?

Your spark plugs should be changed at the interval given in your owner's manual, and this can vary widely based on the type of plug your vehicle uses. In older or high performance vehicles, you may be changing your plugs every 20,000 – 30,000 miles.

What are the advantages of Iridium spark plugs?

Iridium Spark Plugs have some significant advantages over spark plugs made using other metals. They have better performance and more complete combustion than platinum-tipped spark plugs. Iridium has an outstanding longevity, so you won't have to change the spark plug so frequently.

Do Iridium spark plugs increase horsepower?

Iridium plugs take less voltage to fire which results in more coil dwell time. That translates to better combustion, lower emissions, better fuel economy and more horsepower.

How long should Iridium spark plugs last?

Long-life platinum and iridium spark plugs will typically last up to 100,000 miles or longer provided the engine isn't using oil or doesn't spend a lot of time idling. Replacing spark plugs at 100,000 miles can be troublesome on some applications.

Are Iridium plugs worth the money?

Iridium is said to be six times harder and eight times stronger than platinum. … It is also worth mentioning, that with platinum and iridium plugs you generally get what you pay for. The more expensive the plug, the more platinum (double/triple coated) or iridium is usually used in the plug.

Will Iridium spark plugs increase mpg?

So, platinum- and iridium-coated plugs with a copper core won't boost horsepower or fuel economy; they'll just last longer and perform more consistently.

When should I change Iridium spark plugs?

Conventional spark plugs need to be replaced every 30,000-50,000 miles. Recommended replacement intervals for iridium- or platinum-tipped spark plugs vary between 60,000 and 120,000 miles.

How do I know if my spark plug is misfiring?

A gap that is too close will not deliver the proper amount of spark to satisfactorily cause the air fuel mixture to burn cleanly. While a gap that is too wide may not allow the ignition system to fire the plug at all. … Properly gapped spark plugs also remove heat from the cylinder ignition chamber.

When did iridium spark plugs come out?

In 1994, the first iridium spark plugs were introduced by NGK as a long-life alternative to platinum plugs.

Do Iridium plugs burn hotter?

Spark plugs with a hotter heat range will burn off carbon deposits more easily than a colder plug. “As an example, an Autolite copper 105 versus an XP Iridium 105 will have identical ceramic temperatures and the carbon burn off will be the same,” says Reeves.

How do you tighten spark plugs?

The tapered seat spark plugs must be installed by the use of the hands until finger-tight. Use an extra 1/16th turn with a spark plug wrench to make sure your spark plug is tightened to the manufacture's recommendation. Also, you can use a torque wrench to tighten the spark to approximately seven to fifteen lb.

Which spark plugs are better copper or platinum?

Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.

What is a double Iridium spark plug?

Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing advanced OE spark plug technology. … Unlock the performance in your engine with Bosch Double Iridium Spark Plugs.

What is Iridium used for?

The main use of iridium is as a hardening agent for platinum alloys. With osmium, it forms an alloy that is used for tipping pens, and compass bearings. Iridium is used in making crucibles and other equipment that is used at high temperatures. It is also used to make heavy-duty electrical contacts.

How often should you change copper spark plugs?

how often do you have to change copper spark plugs? i was told "normal" spark plugs usually have to be changed between 20,000-30,000 miles. but, copper plugs need to be changed every 5,000 miles with oil changes.

How do you know when you have a bad distributor?

The metal used to coat the electrodes is how different types of spark plugs are known and defined. Types of spark plugs available today are known as "copper", "nickel", "platinum", "double platinum", "iridium", and "silver".

What does a healthy spark plug look like?

Images 1 & 2: These are normal looking spark plugs. The insulator tip is grayish white, but could also be grayish yellow to brown. This indicates the engine is in good operating condition and the heat range of the plug is correct. … In a two stroke engine, it indicates an oil mixture that is too rich.

Do Iridium spark plugs make a difference?

Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. … However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.

What’s the difference between Iridium and normal spark plugs?

The main difference is the material that the 'tip' of the spark plug is made of – normal ones are usually copper, whereas the other two have tips made out of platinum or iridium. … On an engine that has been modified with higher compression or more boost, it might be worth springing for platinum or iridium plugs.

Can I replace Iridium spark plugs with platinum?

If your owner's manual recommends double platinum spark plugs, then those are the best spark plugs to use. Never downgrade to single platinum spark plugs or copper spark plugs. However, you can upgrade to an iridium/platinum combination plug (an iridium center electrode with a platinum-tipped side electrode).

What are the best spark plugs for fuel economy?

Some spark plugs are claimed to increase horespower. … If they could increase horsepower by using a slightly more expensive spark plug, they would. The biggest effect on horsepower comes from the design of the engine (combustion chamber and intake system) and ignition timing.

What is the use of spark plug?

The spark plug has two primary functions: To ignite the air/fuel mixture. Electrical energy is transmitted through the spark plug, jumping the gap in the plugs firing end if the voltage supplied to the plug is high enough. This electrical spark ignites the gasoline/air mixture in the combustion chamber.

What is the best spark plug?

Your spark plugs should be changed at the interval given in your owner's manual, and this can vary widely based on the type of plug your vehicle uses. In older or high performance vehicles, you may be changing your plugs every 20,000 – 30,000 miles.