GC 0W30 in summer?
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On The Tree
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From: Riverside, CA (So Cal)
GC 0W30 in summer? Well after driving to four different autozones I FINALLY found some gc 0w30, but before I dump it in my car should I look for a thicker oil? Reason being is that I live in Southern California and the temps out here can easily break the 100+* range which could be bad for thinner oils. Also i'll be going road racing in a couple of weeks and that will cause even greater temps to my engine/oil/etc. So what do you guys think? Will the GC hold up? From my searching I heard it's closer to a 40w and it's much harder to thin out this oil at high temps compared to other oils which gives me some confidence. Thanks in advance.
-Andrew
-Andrew
You are fine. The 0W number just means you have more protection on initial startup when the weather is very cold outside. The 30 number is the weight of the oil at temperature. the GC 0W-30 30 oil will give better protection in the heat than say a M1 10W-30 oil as the M1 tends to be thinner at temperature than the GC 0W-30.
yea, i guess im gonna chenge my mobil 10-30 over to gc next oil change hey curiously wondering would that oil work good in my g/f car she's got a 03 turbo bugg been running same oil ( mobil 10-30 as well) as me, she has a lite ticking and the car's always been babied since new, i wonder if it's safe on her car as well??????
Originally Posted by ChocoTaco369
GC 0W-30 FTW, year 'round, rain or shine.
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From: Philly
Originally Posted by CULATR
yea, i guess im gonna chenge my mobil 10-30 over to gc next oil change hey curiously wondering would that oil work good in my g/f car she's got a 03 turbo bugg been running same oil ( mobil 10-30 as well) as me, she has a lite ticking and the car's always been babied since new, i wonder if it's safe on her car as well??????
"Exceeds all car and light truck manufacturer's warranty requirements for the protection of gasoline, diesel and turbocharged engines. Also meets engine protection requirements of Porsche, BMW, Volvo and Mercedes Benz."
so i would assume so? you can try it. i don't think it's going to break anything
if it doesn't run well on it, change it. that simple.i'm not the best one to ask for this since i don't know what specifications the volkswagen is manufactured to. i would consult the manual.
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Originally Posted by BLK02TA
Has anyone seen that 0w-30 European forumla stuff? Any word on that?
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From: Philly
Originally Posted by jmm98LS1
It's just a new bottle design/label. As long as it says 'made in Germany' on the back, it's the right stuff. About half of my stash has the 'European formula' label and the other half doesn't.
forgot to reply to that one 
Originally Posted by CULATR
yea, i guess im gonna chenge my mobil 10-30 over to gc next oil change hey curiously wondering would that oil work good in my g/f car she's got a 03 turbo bugg been running same oil ( mobil 10-30 as well) as me, she has a lite ticking and the car's always been babied since new, i wonder if it's safe on her car as well??????
hey, thank for the info and help im going to try it out on her car can't hurt right, anyhow thanks all for the help everyone.........
Originally Posted by jmm98LS1
Absolutely! If I'm not mistaken, the 1.8T motors had 0w30 as a factory fill. Given the strong ties between Volkswagen and Castrol, and the limited brands of 0w30 in Europe I'd be willing to bet it's Castrol 0w30. I've also heard that VW dealerships sell/use GC 0w30 in their service dept as well. FWIW, I use gc in both my ls1's as well as my gen I 355ci sbc with excellent results. It's a very versitile oil.
Originally Posted by VA2001SS
The range for 30W is 9.3/12.5 cST@ 100 deg.C. M1 5w30 and 10w30 are 10.0 (low end for 30w) and GC 0w30 is 12.1 (nearly 40w) that's why it's good even in the summer.
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From: Philly
don't know, but i can tell you it's not worth another $3 a bottle. i'd never buy amsoil's crap. if you ask me, they're all marketing hype. i've seen their biased tests. they lost 8hp over mobil 1 0W-40 in a test i saw...and all their oil tests are done with different oils.
it'll be:
amsoil 5W-30
mobil 1 0W-40
pennzoil 20W-50
castrol 10W-30
it's like holy **** can you at least pick the same weights to see how they do? my guess is if they chose the same weights, they wouldn't come out on top. pass on amsoil IMO.
it'll be:
amsoil 5W-30
mobil 1 0W-40
pennzoil 20W-50
castrol 10W-30
it's like holy **** can you at least pick the same weights to see how they do? my guess is if they chose the same weights, they wouldn't come out on top. pass on amsoil IMO.
