About 2 months ago I changed my oil with Castrol High Mileage (the one for cars with 75,000+ miles) with a K&N High Performance Gold filter (I always use those since I get it for free) After doing that, my car ran like ****...it was so rough and choppy, jerked all the time when I let off the gas, it actually felt better before I changed it. Today I did another oil change after about 1,900 miles and used "Castrol GTX New Start" oil, and it runs like a dream...It runs so smooooth, it's like I have a brand new car. I can't believe it's the same car! I highly recommend this oil to everyone.

 

What kinda oil did you use before High Milage?
Jae

 

What does that new start stuff do/claim to do?? whats inside it??

 

I believe I had my oil change done by Nissan before that

 

gtx start up is supposed to be polarized so that the oil will stick to the metal. no not a stick like a glue but so that when u start the car u don't have the situation of starting with no oil on the gears.

 

I switched to Castrol GTX recently and haven't noticed any smoothness It just behaves like it was before when I used to get Jiffy Lube pour in the quaker****. I even bought Nissan oil filter.