Anyone try these plugs? Any better fuel mileage -advertised up to 4.8% better fuel mileage - I'm sceptical. On sale for around 6.00 after rebate at rockauto.com Thanks.

 

spark plugs only add power and fuel economy if the OEM spark plug is worn out. that is how the manufacturers produce these numbers. they take a car with worn out spark plugs and take down the power and fuel consumption numbers and compare it to a brand new spark plug. you dont gain power, you recover power that was lost from the worn spark plug.

as the xB2 comes with some pretty decent iridiums you wont find any difference from the new sparks. plus our DENSOs have a claimed 120,000mile service.

up to you man. rule of thumb before the iridiums were introduced was to do a 30,000mile service for the sparks..

 

i use nkg iridiums

 

Do you mean NGK?

 

No I'm pretty certain he is referring to nkg, the ebay specials. Much much cheaper than the NGK equivalents. JFWY...of course he meant NGK, he just must have been typing faster than he was thinking ;)

 

yeah yeah lol 2 steps colder for me for the secret weapon goes on next weekend lol