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The TRC stands for Texas Refinery Corporation and they are located in Ft.Worth, Tx. It is a privately held company with apparently world class products. You can order their products over the phone.

2005 Toyota Prius 140,200 miles Schaeffer's 9000 5w30 Wix Filter

I drive a Prius and have been using Valvoline Synpower 5W 20. Vehicle has 135,000 on it, and burns no oil. I change every 7,000 miles. I keep hearing about Schaeffer's 7000 and how good it is, but some recent posts are saying it may not be as effective in Toyota's as it is in domestic cars. I...

I drive a diesel Passat, and recently I was filling up when an eighteen wheeler pulled up next to me. He said he used Mystic Oil, and swore by it. He had 750,000 on the rig, and he said Mystic would take it over a million miles easily.