im going to do a tune up on my 98 lexus gs400 w/ 166k miles for the 1st since i owned it since jan 07

i was gonna

change

-spark plugs & wires
-air filter
-timing belt
-transmission fluid and filter



what else should i change? and what kind of spark plugs and wires should i get ? let me know guys thanks

 

wires? GS' have individual coil packs, no need for wires.

 

also, think about:

water pump
all your fluids, not just transmission
not sure what else really...ask the dealership what normal maintenance would be for your situation. if not, i know that you can go to: www.luxurymotorworks.com and click on MAINTENANCE, then you can see what they would usually do.

as for spark plugs, i recently bought some NGK IX Iridium Plugs. going to have them installed for my dyno tuning / pulls tomorrow.

 

easier said than done, i am surprise you didn't say you were going to change cap and rotor too. are you doing this your self or are you taking it in some where?

 

oh ok on the coil packs what kind of Differential Fluid can i put in?

 

ha ha ha ........ha ha halmao

 

I myself use Redline 75w-90. However, you can use many kinds. Might as well go with a synthetic since its only a few bucks more than regular fluid, and it protects better too.

 

I'm using Amsoil Synthetic Gear Lube...

You can clean your TB...

 

Wow i didnt even know the gs3 had coilpacks.

 

What is this "cap" i keep on reading everyone is talking about changing during tuneup

 

???????? anyone