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I am come up on an oil change and dont know if i should put in syn oil or regular. it has 98k on it and the guy who i bought it from has used regular oil its whole life. so should i switch to syn or stay with the old oil?
 

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I'm sure a lot of guys will tell you to go to synthetic. I use Delo 400 and have 194 1/2K on the truck and change it every 7k miles. Guys running synthetics are going 10k miles and over before changing their oil.
Basically it cant hurt changing over. I guess it's wash seeing that synthetics cost more but you change the oil less where regular oil cost less but you change it more.
 

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Oh...... Squirrel!
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i've been thinking the same thing... i bought the truck with 97k on it and she's about 101k right now and i'm thinking i will just go with rotella dino... because i know i'm gonna change it every 3-4 thousand miles anyways :)
 

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I have 97000 on my truck and I have been using Rotella every 5000 miles with no problems.
 
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