What is a good coolant

[rgreen]

(12-16-2016 )Rawze Wrote:  

(12-16-2016 )rgreen Wrote:  I have 09 prostar isx 871 the manual says use Shell Rotella® Ultra Extended Life Coolant, I just change my coolant filter so I drain all the coolant out of the truck. Does any one has recommendations on what they will put back in their truck?

Just above the coolant filter is a small silver-ish shutoff valve with an arrow on it. This is so you can change the filter without draining anything. Arrow UP, it is on,.. Arrow to the LEFT, it is shut off.


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The best looking liners after a million plus when I see an engine apart,... have all had RED extended life in them that was checked regularly and replaced every 400-500k miles. - At $7.00 a gallon from a local supplier, you can't go wrong.

When I brought the truck, i don't know what the previous owner did, so i went ahead drain the system. The next thing I was to do is change the tranny fluid and filter and change the differential fluid.