just bought a 2000 tahoe limited any recommendations of what oil?oil filter and oil# to put into it?it has 135,000 miles and I reside in southern california if that matters.

 

Welcome to the forum.

I'd just follow the manual on oil as far as weight goes and use a good brand, Quaker State, Pennzoil to name a few. Stay away from Fram filters tho.

 

oil cap says 5W-30 ill stick to that

 

Pennzoil is considered good oil? Jiffy Lube also uses that brand.

I prefer Mobil One or Castrol.

 

synthetic or regular?

 

i was thinking Castrol GTX

 

Any brand is fine as long as it is the correct weight and viscosity, is detergent and API certified (has the star burst)
Dino vs. Synthetic is a personal choice... Synthetic is proven to hold up longer...
I use Mobile1 5w-30 Synthetic and and AC Delco oil filer for my 07 5.3L Vortec E85 engine....

 

Straight from the Generals mouth....
http://www.gm.com/corporate/responsi...ngine_oils.pdf

 

Hmm, I didn't see Amsoil.

Not GM approved?

 

Personally I use Mobil 1. Reason I mentioned Pennzoil and Quaker State are those are (or were originally) both from Pennsylvania crude which is a paraffin based oil and was supposed to be better. Used them both since I started driving and have put over 100K on most of my vehicles w/ no engine problems.

Jiffy Lube's problem isn't the oil they use, it's the people they use.