I use this on my two trucks, the first was 6.0. Works really well with this engine and cooling system, I also use T6 full synthetics in this truck. I know that using the highest quality fluids in this engine will help keep it clean and running smooth and at 170k and no issues I'm happy so far. I use regular rotella oil in 7.3 and it also has elc coolant in it. I did over 200,000 last week and it works fine. You never know how using these high quality fluids will help your truck or car, but the peace of mind of using them will help put your mind at ease. I bought my trucks for my family as the last trucks I hope to buy. So that's the best way to make me believe they'll last that long. I live in Phx Az so don't worry about rust just follow the maintenance diligently. At least I'm hoping to get 500,000 of these and hopefully closer to a million miles!
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