What is the difference between a NGK dr8es and dr8ea?

Super Moderator. They’re almost the same plug – according to NGK’s spark plug guide the S has a standard 2.5mm electrode and the A is a ‘special design’ – no more info given than that!

What spark plugs give more horsepower?

Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs. Iridium spark plugs feature a fine wire center electrode that is designed to conduct electrical energy better and increase firing efficiency. There is a price for this precious metal.

What spark plug gives the most spark?

Iridium
Iridium. The best spark plugs on the market boast an iridium construction. Iridium spark plugs give you even better gas mileage, performance, reliability, and longevity than double-platinum plugs.

Will a hotter spark plug burn fuel better?

1. Air/Fuel Mixture: Lean air/fuel ratios raise cylinder-head temperatures, requiring a colder plug. Rich air/fuel ratios require a hotter plug to prevent fouling. Mixtures that cause the plugs to read lean might contribute to preignition or detonation.

Do Iridium plugs burn hotter?

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics.

What is the difference between the dr8es and the EA?

However, the difference between the DR8ES and EA is head space. Take a micrometer and measure the thread height. Some engines have the tolerance for the es vs the ea, and this can take the EIX.

What is the difference between d8ea vs d8es?

Re: D8EA vs D8ES? The D8ES was a “Super-wide heat range” sparkplug. The EPA made NGK discontinue these in the early 1990s. Their replacement was the D8EA, a colder plug by about 1/4 heat range step. The D8ES-L (now defunct, except in the resistor version DR8ES-L) has a Longer tip (i.e., Extended Tip) to help burn off deposits.

Are the d8es-l’s any good?

The D8ES-L was/is in between the D8ES and the D7ES and as soon as they appeared on the market were officially prescribed for instance by Honda France as being auto-nettoyantes (self-cleaning). I’ve always found them excellent plug and I felt safe with them on long hauls at high speed.

What is a d8es plug?

The D8ES was a “Super-wide heat range” sparkplug. The EPA made NGK discontinue these in the early 1990s. Their replacement was the D8EA, a colder plug by about 1/4 heat range step. The D8ES-L (now defunct, except in the resistor version DR8ES-L) has a Longer tip (i.e., Extended Tip) to help burn off deposits.