Under the hood on the drivers side real close to the hood brace on the firewall they're 17 bucks a piece for those two five second relays.

Mike suede is wrong a 4.d liter is a 289 v8 a 302 is a 5.0

You know man it would help if you tell us what kind of truck you have and how many cylinders it has if you don't tell me that than I can't help you because you wont help yourself check on the engine itself to see if it says anything like 5.0 or 5.3 or vortex … Read more

Go to autozone.com and look up the item than look at the picture of what its supposed to look like then look on the firewall somewhere you should find it no problem and all you need to change it out is a flat tip screwdriver but its not a cheap part

Dude obviously all engines take oil it really doesnt matter what kind you put in it as long as its full personally I would use a 5w20 oil for a four wheeler