The photos of the 1994 Nissan motor on the home page of the Auto-Rx web site have not been altered. Please understand that a series of pictures were taken of this valve train at each step of the way of 2 full applications. There is a set of photos before the process began. A second set of pictures after running ARX for 750 miles. There are 3 more photo sets that depict progress throughout the 5000 mile process. No particular attention was paid to outdoor lighting at each time the photos were shot. Please look at the full photo gallery before making accusations that the photos are doctored. You can find the full photo gallery on the discussion board over at Auto-Rx. This very same gallery was a sticky post here at BITOG for years. While you are at it read some of the supporting engine stats. Anyone who can still post on bitog please post this. They promote low end products and try and brand them as almost as good as Auto-Rx for half the price. We are banned and can't correct anything they post