Engine Oil Specifications 2004 Tahoe

[waltmoe]

I am waiting delivery of a 2004 Tahoe. Does anyone know the recommended engine oil specifications for the 5.3 liter V8?

Thanks

[BoatCop]

SAE 5W-30 is recommeded. 10W-30 is acceptable if 5W-30 isn't available and the temperature never gets below 0 degrees (F) or 18 degrees (C).

If you're in extreme cold weather, where the temp drops below -20 (F), you can use 5W-30 synthetic or 0W-30 for easier cold starting.

DO NOT use 10W-40, 20W-50, or other multigrades not recommended.

According to GM, synthetic oil isn't necessary, except for the extreme cold situation mentioned above.

Good old dino-oil is all you need.

[ryderjames]

considering the fact that (unsure about the 04 and up models) you better use synthetic oil because all tahoe suburbans trucks by chevy pretty much have a problem with piston slap. you have a new system on your rig that goes by engine revolutions and not mileage when getting your oil changed, it's the same on the vettes look in your manuel.

[gurrzt]

I live in a warm climate, and @ 1100 I changed the oil to Royal Purple 10W-30.

I believe the prerequisite for warrenty purposes, is that the front of the oil container has a "star" symbol which says "for use in gasoline powered vehicles".