I'm assuming your truck is a DD? Do you let it warm up EVERY time you cold start? Or just one of those drivers who had the trans in D already before the starter is done spinning, haha... cuz I'm sure that will make a difference in valve spring life.
I let it warm up. And yes it's my DD. Never let it get over 3k till it hits operating temp. They springs had 18k miles on them though.. And with xer lobes
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