New truck have some questions

[remist17]

Bought a 2013 silverado, new in April. Never had a new truck before.

5.3L/ 4x4/ extended cab/ Z71/ 6 speed

Whats the deal with the motor shutting down to 4 cylinders. I really cant stand it.

Is it normal when you are traveling on the highway you feel the swith from 4 to 8? There is a little bump.

I also seem to feel the truck shift alot. Is this just the 6 speed?

Last question what oil are people using ? I usually get mobil one but I am not sure if this one still uses 5W30.

Thanks.

[Special-Ed]

keep using mobil 1... they have the right weight!
shifting... 6 speeds shift a lot takes getting used to.

as the 8>4 thing... i hate that crap... and yes its normal to notice.

it will drive nothing like your 2005 and will feel different.(drivetrain)

[Armando22]

Yeah this is good information for every body in this community specially for me because i am doing traveling and transporting system from the air port so i was searching for this type information anyways thanks for this and have a nice day .............

[piecesparts]

The 5.3 has the displacement on demand setup and the shifting to a 4 cylinder mode is common. I had mine turned off when I did the tune to the engine. It did affect the gas mileage a little, but for the most part, I do not miss it.

I also tuned the shift points on my truck to get them tighter and they seem to shift more like I think they should, now.