Bought a 08 1500 4.7 last March...dealer gave me my first oil change, came time again and I threw in 5w30..Live in Indiana so, it will be getting cold here soon. From what I have seen does not look like it will be a problem. Anyone have any issues?

 

I would use the recommended 5w20 if it were my truck, but that's just me.

 

It calls for 5w-20. Since it gets pretty chilly up there, -30 may not flow well enough.

 

Never had an issue running 5w20 over here in Chicago.

 

Just grabed the 30, just so used to it, guess I will give it a month and change it again when it really starts getting cold.

 

You've got the numbers backwards. It's 5(Winter)-30 operating temp.
The Winter number is what oil is at when cold started. Oil then changes visosity to the higher number once warm providing better protection at higher temps.
30 weight won't flow as well as a 20 weight so you will definately set off an internally stored DTC code. This does NOT set off your check engine light, but your Dealer will be able too hook up a Scantool and find the code of incorrect oil weight. It's insignificant to them really but the only effect that you would be concerned about is that you have MDS and it may not function all the time because of the different viscosity rating.

I have my MDS turned off and choose to use 5w-30 for the better protection. 30 weight has half again as much viscosity than 20 weight but that also means it takes that much more time to flow...which is why the MDS lifter can fail to activate.

 

I don't have the numbers backwards. I know very well what they mean. The engine calls for 5w-20. -30 is thicker than -20 at operating temperature, so it won't flow as well. The outside temperature is irrelevant. 4.7s don't have MDS.

 

unno if you care that much, But is the weather gets very cold, I would recommed using synthetic oil if you park outside. conventional oil doesnt lubricate well in temprature extremes..

Just a thought.

 

Um, viscosity is viscosity, dino or synthetic. Synthetic handles heat better, hence its use in boosted motors.

 

i live in nebraska and this is my first oil change that ive done my dad uses my truck some times and he usually change it but would 10w30 be fine or is that more of a summer oil?