OK so i finally got my A4 fixed, sorry i couldnt post anything on the old forums, it wouldn't let me! idk it was weird, but anyways they just did a complete throttlebody cleanup and that did it. the stealership didn't rape me so bad! it was like 160 for the whole thing. but anyways i want to change my pluggs, and do an oil change. ok first can i put iridium spark pluggs on a bone stock30V 2.8 v6??? and which is better Denso or NGK? which wil give me better results? ok, now oil: what do the Quattro's use? 10W30 or 10W40?? and which is the best, i've heard royal purple is good and Q-horse power is good but i really dont know?? any suggestions?

 

I use NGK spark plugs and Valvoline full synthetic oil at the recommended velocity, witch on my car is 5w-30.

 

A full synthetic oil is a must and 5w 30 is what you need. Royal Purple is great but way too expensive for toolin around town... I would go with Denso plugs not NGK. NGK=JAPAN

 

NGK = quality.

 

I've got Densos and I like them but they're pretty expensive, i think they were like$10-12ea. I've read a lot of good thing about NGKs on here, I'll be going that route when I change them out here beginning of May.

 

^ I bet you got them because some performance comany said they were perfect for the car. Oh so cute.

 

USE ZEX PLUGS!!!......if you have a 1.8t they are especially made for turbocharged applications, but since you have the V6 use DENSO good stuff....As far as oil mobile 1 full synthetic

 

so im debating wether to go ngk or denso... i have a really heavy lead foot! so which would give me better results? and oil i think im gonna try that q-horsepower shizz see if that stuff does anything.. lol i doubt it thanks for the feedback guys!!

 

I went bosch... i went to auto parts and found out that bosch had iriduim spark pluggs, so i went ahead and bought them, didn't really feel any hp gain though, the old pluggs were pretty bad! funny thing is that the oneson the car seemed to be original equipment from audi and they were NGKs and had a VW/Audi logo on them wtf?

 

because OEM Audi plugs might have been NGK?? just a thought.

as for oil it all boils down to preference/availability/price and for me I can get Aimsoil for wholesale so I use that the 5w-40 Euroblend and love it.


I might switch up and try Mobil1 or Royal purple next though just for fun or Motul