mike991

Mobil 1 or castrol syntech north american, not german castrol?

COD02SS

NEITHER. RP, Amsoil, Redline or German Castrol. Rest is garbage

9000th01ss

iTrader: (10)

I've been using pennzoil platinum. Everyone has their favorite I guess I finally picked this as mine.
I've tried the mobil one and castrol syntec, they all seem to work about the same.

ZMONSTER!

iTrader: (9)

Royal purple here, love this stuff!

davered00ss

iTrader: (4)

It's a hot topic. Do a search and you will find a ton of info on this. No clear answers either. It's a personal choice. I like Mobil 1.

TXZ28LS1

iTrader: (5)

im running castrol syntec 5w-40!! its really good stuff. i dont have any oil consumption issues or anything. try to look up a guy named patman. hes done testing on the mobil 1.

Trav's_TransAm

iTrader: (5)

Royal Purple all the way.

trojjan

iTrader: (45)

Mobil 1 is the OE oil on many factory hot rods for good reason.
Excellent oil.

primer84z

iTrader: (7)

i use the wal mart dino lube.

lt1noob

iTrader: (4)

royal purple.

lt1noob

iTrader: (4)

you will be more than happy.

tylerdj

iTrader: (31)

Why not German Castrol?

BlueThunder2

iTrader: (3)

Click on the AMSOIL tab on right (sponsor). There is testing on there of all the synthetic oils. Once you are well informed, then make your choice. I converted all my vehicles to AMSOIL (since I'm now an AMSOIL dealer) and can actually tell a difference. Vehicles start easier, get better gas mileage, and have more power. Plus, they have a 25000 mile change interval. Check out the sponsors web site. (Wish I could tell you to check out my web site, but I'm not a sponsor.)

Mr. Brett

iTrader: (13)

I also run Amsoil. I've tried several flavors of Mobil 1, German Castrol, etc. Amsoil is the only brand I've used that quiets down the valve train AND gives excellent wear numbers. It also corrected my oil consumption issues.

COD02SS

It's the factory fill because Mobil 1 pay's big money for that distinction.

JHL88

i use mobil 1 synthetic, no complaints here. i wouldnt call mobil 1 garbage, but id stay away from Quaker state

COD02SS

If you've read some of the oil analysis over at bob is the oil guy you'd swap that oil out asap.

JHL88

do ya have any links to any articles? ill check em out

i only use mobil 1 cause they're the only oil that is High Mileage+synthetic.. unless you know of any other

tylerdj

iTrader: (31)

Here's a link to an analysis on German Castrol done by Patman.

https://ls1tech.com/forums/generation-iii-internal-engine/280043-newest-feb-22-oil-analysis-my-c5-using-german-castrol.html

Mr. Brett

iTrader: (13)

Mobil 1 is crap. Anyone who tells you otherwise is either uninformed or is basing their opinion off of advertising or the assumption that price = quality. Do yourself, your wallet, and your car a favor and don't buy it.