Tranzor

I'll be using Mobil 1 0w40 when I change my oil this weekend... going to use this instead of Mobil 1 10w30 which I was using previously. I'll let ya know how it goes.

Patman

Yes! And many people think it smells like gummibears too!

Being green is one of the reasons we know for sure that this oil is in fact Formula SLX 0w30 from Germany, since the only oil that Castrol makes in green in the entire world is that formula. Castrol USA is still tight lipped about it though, they refuse to give out any more details on this oil, they still claim it's identical to the old US made 0w30, when in fact the two oils are radically different. Consensus is that Castrol USA is a bit embarressed to admit that this German made stuff is so far superior to any of the other Syntec oils made in USA, that they refuse to give out too much info on it.

bigMAC

Thanks for enlightening me. I change the oil at my school and of course the auto and wood shop teachers where there along with like 6 of my friends checking out my car. They all laughed at me for buying two types of oil especially the 0w40 because of the european formula thing. Well this proves I'm not a complete dumbass.

squirts1

i gotta ask... why dont you just buy the damn 10-40? seems MUCH more logical than messing with two oils that were made to be different even if they are the same make.

Jon5212

iTrader: (2)

I used Mobil 1 5w 40 i believe... seems fine to me.

coolformula

iTrader: (21)

Well thats a 4 year old post. Why not use GC?

KrazyDan

I cant find the gc anywhere here in San Antonio. I have checked about 15 different Autozones and found a total of 4 qts. Where else can i get some?

ChocoTaco369

mobil 1 10W-30 is THINNER than mobil 1 5W-30. you want the lowest number possible by the W. that's ONLY the startup thickness. as soon as your engine has been running for 30 seconds, that number goes away. the only number that truly matters is the last number after the dash. you want the oil to be as thin as possible during startup so the oil gets to all the areas of the engine quickly. if you run a 10W, the oil protects very poorly during startup since it takes longer to travel to the smaller spots. this is why i prefer a 0W for ALL temperatures.

EDIT - aye, 4 years old? who bumped this? there's been A LOT of this ancient post bumping lately. FWIW, IMO ALL mobil 1 30 weights suck. they're all overrated and they all show mediocre at best wear results. i just picked up 18 quarts of GC 0W-30 on sale at my local autozone for $4.49/quart. i will forever use GC 0W-30 as long as i can get it after the disappointing results from mobil 1 5W-40 (more oil consumption, louder valvetrain tick, less oil pressure).

KrazyDan

My search continues to find 2 more quarts of GC for my next oil change. This will be my 2nd oil change with GC. Was very impressed after the first time around. Zero oil comsumption

2fstws6

[QUOTE=KrazyDan]My search continues to find 2 more quarts of GC for my next oil change. This will be my 2nd oil change with GC. Was very impressed after the first time around. Zero oil comsumption[/QU
The best oil I have ever used.

bad6as

iTrader: (17)

i cant find GC any more i got a chance to use it once. no complaints.
im a fan of amsoil i have used teh 5w40 be for but what 5W 30 amsoil are you talking about (patman) theirs a couple differant ones ASL, XLF, HDD, TSO

mckinney

quick question what kind of oil do yall thnk I should use on my 98z it has about 140k miles on it????

SIC LSX

iTrader: (10)

i have always ran M1 0w-40 for forever with no problems!