I firmly believe that we can hear a difference at times with our cars running different types of oil. My Nissan Altima 3.5 runs a good amount quieter on Pennzoil Ultra Platinum and Castrol w titanium gold bottle than per se Royal Purple. I'm not knocking RP. It's a fine product. It just caused my car to really have a lot of noise that wasn't there before. I bet that if I had run the HPS version this wouldn't have happened.
As far as Mobil goes... Mobil Super Synthetic ran rather well in my car. The tick in my motor was a bit more noticeable with the MSS. But not to a large degree. It was within acceptable limits.
The Pennzoil Ultra Platinum I have in it now runs so well its hard to even hear the car running at idle. Which for the price of organic eggs... I like
As far as Mobil goes... Mobil Super Synthetic ran rather well in my car. The tick in my motor was a bit more noticeable with the MSS. But not to a large degree. It was within acceptable limits.
The Pennzoil Ultra Platinum I have in it now runs so well its hard to even hear the car running at idle. Which for the price of organic eggs... I like