Are Denso iridium plugs good?

Both the Denso and the NGK spark plugs are crafted of iridium– with metal that is a lot less conductive than copper- but has better longevity, and a capacity to work at a lower temperature. While iridium spark plugs may not be the best when it comes to performance, their longevity is second to none.

Do you gap Denso iridium spark plugs?

In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations.

How do you spot a fake Denso Spark Plug?

The fake was installed and run for about 150 miles.

1. FAKE: Bolt surface ~1mm shorter/thinner than genuine.
2. FAKE: Electrode wrong color.
3. FAKE: Electrode slightly too large, genuine electrode is very slim.
4. FAKE: Gap out of spec.
5. FAKE: DENSO JAPAN engraving on metal jacket between threads and bolt is thin and weak.

Is iridium The best spark plug?

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. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.

Is Denso better than NGK?

Denso plugs are installed on almost every automobile model manufactured in Japan. The iridium used in them has a superior hardness. The electrode’s diameter in Denso plugs shrinks more than an NGK. For this reason, Denso plugs do not last longer than NGK units, but they are better at producing powerful sparks.

Does Toyota use NGK or Denso?

NGK and Denso are both fine plugs. Toyota uses both brands in manufacturing. On the V6, sometimes you see one bank with Denso and the other with NGK. IMO, get which ever one costs less because you won’t notice any difference between the NGK and Denso.

Should I Gap NGK Iridium spark plugs?

Do NGK Iridium plugs need to be gapped? The answer to this question is yes. For your engine to perform at optimum, the spark plugs in play should have the necessary spacing. It is thus vital that you get hold of the NGK spark plug gap size chart and adhere to the same.

How long do Denso iridium plugs last?

120,000 miles
All Denso long life iridium spark plugs are an OEM design, made for a specific engine. Some feature a special resistor or electrode design, depending on the OE requirements. In their OE application, Denso’s long life plugs can last up to 120,000 miles.

How many miles can ignition coils last?

100,000 miles
Average lifetime of ignition coil is around 100,000 miles or more. It is not an easy worn out replacement car part but still could fail for variety of reasons.

Where are Denso Spark Plugs manufactured?

DENSO spark plugs are only manufactured in Japan, Indonesia, China or the United States of America.

Is NGK better than Denso?

Are iridium spark plugs worth the money?

Iridium spark plugs give you even better gas mileage, performance, reliability, and longevity than double-platinum plugs. Due to the advanced material and innovative technology integrated into iridium spark plugs, these plugs are priced higher than copper and platinum options.