I have a 2004 1500 truck with a 4.7 liter V-8 engine and know that the oil filler cap says to use 5W-30 oil but would it make a difference if I used 10W-40 oil instead. Thanks in advance for the help?

 

moe in wichita ks

the most important thing about oil is to have lots of zinc in the oil. i have done some searching on the internet on oil, filters, additives. i like to have oil as thick as i can and it still start in cold. so here is what i use, 2001 dak v6. valoline premium blue 15w-40 oil. purolator pl14670 pure one filter, use only a pure one filter that is shown by the p in the part no. then you need to go to zddplus.com site and get some zinc from them. my truck starts ok in the winter, but we normaly dont get below 0 f.
i did have trouble with 20-50 not wanting to turn over in the winter.

 

try this site http://theserviceadvisor.com/part/fu...udi/index.html ....,also try Buick Terraza Oil Filter