Best Oil brand to use

[eZD]

What's the best oil to use for my car?

It has 200,000 km and I do a lot of highway driving in it, around 150km a day.

My choices are:

Castrol GTX
Castrol GTX High Mileage
Pennzoil

Should I use 5w30 or 10w30?

Thanks,

ezd

[navyblue2000]

i believe the 3.4's take 5w-30, the 3.8s take 10-dubb-30


what's that in MILES? high mileage oil is normally good for 85000 + miles cars

[HPbyChevy]

IMO, the climate would probably dictate which weight oil I would use.

5w is for colder climates, 10w is for warmer climates. I use 10w-30 in my Camaro all year around (because it doesn't get used in the winter). While I run 5w-30 in my truck all year around. Both those weights are manufacturer recommended.

But if I was to drive the Camaro (and that's a BIG if) in the winter, I'd change to a 5w.

Any of those brands are good enough to use. They all have to meet spec.

[1998silverbird]

Mobile One 10 w30 full synthetic is what I use..

[IronMan]

<blockquote>quote:</font><hr>Originally posted by 1998silverbird:
Mobile One 10 w30 full synthetic is what I use..<hr></blockquote>


True dat.

[eZD]

Not what I asked...

[cassie]

Castrol GTX high mileage

if it gets pretty cold up there
then 5w-30

[raxxus]

Becareful if you decide to switch to synthetics with high mileage, heard they tend to piss off your gaskets. I use Valvoline Maxlife ( i have 120000+ miles ).. but it really isn't a BIG deal on what kind you use, its how often you change it. As long as you change it every 3000 miles and use half decent stuff, you'll be ok [img]smile.gif[/img]

[Red94Camaro]

Pennzoil is one of the worst oils you could put in your car. DO NOT USE IT. I've seen what it does to engines.

[Loochy88]

<blockquote>quote:</font><hr>Originally posted by Red94Camaro:
Pennzoil is one of the worst oils you could put in your car. DO NOT USE IT. I've seen what it does to engines.<hr></blockquote>

can someone comment on this? my family has used penzoil for years... ever since i can remember, and i can not remember one engine problem ever.

if someone can say something about this ill change my oil type immediately

[Dekay]

I've used Pennzoil in the past on a bunch of cars. Never heard of any problems with it.

<blockquote>quote:</font><hr>Originally posted by Loochy88:


can someone comment on this? my family has used penzoil for years... ever since i can remember, and i can not remember one engine problem ever.

if someone can say something about this ill change my oil type immediately<hr></blockquote>

[Darknight]

Whatever happened to those cars was not a result of responsible Pennzoil use. Pennzoil has to be changed like any other oil.

DK

[AZ3.8Camaro]

True.
I have personally torn apart an engine that has had nothing but pennzoil in it. It wasn't all gunked up like everyone says....