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Discussion Starter · #1 ·
What would be the best engine coolant to put in my truck for optimal cooling??? What about additives that claim to cool the engine more, for example, "Royal Purple's Coolant Additive"???
 

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Discussion Starter · #3 ·
How much and where can it be bought???
 

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Discussion Starter · #4 ·
Is there really that much difference in all the availible coolant's???
 

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Discussion Starter · #7 ·
.... as far as the differences in all coolants???
 

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im thinkin of changin my out and puttin in Amsoil !!!
 
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