Is Castrol GTX regular or synthetic oil? the website doesn't really say.

 

Castrol GTX is their brand name for regular dino oil.

 

Castrol GTX with Nissan oil filter; will be switching to Amsoil synth after next oil change.

 

dino(saur) aka mineral oil (regular oil)

 

Where can I buy the Mobil 1 Drive Clean 5W/30 or Mobil 1 Drive Clean Plus 5W/30?
I went to AutoZone today and couldn't find them, so I bought 5 Mobil Clean 5000 5W/30, but I only got 300mi so far......

By the way, I can't even find Mobil 1 Drive Clean products on mobil1.com

 

I use a name brand quality dino oil (Penzoil, Quaker State, Valvoline, Castrol, Mobil, etc.), and a decent filter (Bosch, Puralator, etc.). I don't go crazy with it because its not necessary with 3,750k oil and filter changes. I've done this with all of my previous cars, and there was virtually no internal engine wear after hundreds of thousands of miles. Even after 130k+ of hard miles, the engines didn't burn any oil. The engine always lasted longer than the rest of the car. So to spend lots of money on synthetics and very high end oil filters is a waste of money, IMO. The only time I recommend synthetic (if the manufacturer doesn't require it), is if you:

- race the car frequently (high speed road course or drag racing)
- Drive often in extremely cold weather
- Drive often in extremely hot weather
- Have mods involving forced induction (turbo, supercharger, or nitrous)

 

Hey guys, this might be a stupid question but can the dealership try and void your warranty if there are any issues since you change your own fluids? I just always thought it was best to take it in for a service and maintain proper records, this way they can't pull any crap on you about the car not being treated properly...Let me know, because I'd love to do this stuff on my own but fear the warranty work...

 

Just keep a record of you doing the change. Keep your receipts for the oil and filter and log it in you maintenance book the date you did the change. I've never had a problem and never heard of anyone else having one, either.