German Castrol
08-28-2008, 06:17 PM
#81
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pf57 holds a little more oil they all have the same fitting size , and if there keeping it a secret there doing a damn good job they have convinced themselves it is a unicorn , or some pot of gold.
08-29-2008, 06:55 PM
#82
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This thread got me to reexamine some GC I bought a few months ago.
The last time I saw gold 0W-30, it was made in the USA. That was a year ago or so.
Well, on the back of my GC bottles it says "As the technology leader, Castrol continually improves performance through product innovation. This may result in color/ordor variations from time to time". So perhaps the Gold GC is better than the Green . . . Dunno if this GC is gold or green. Too lazy to break the seal.
Below is a crappy pic. The above text is in the red box.
The last time I saw gold 0W-30, it was made in the USA. That was a year ago or so.
Well, on the back of my GC bottles it says "As the technology leader, Castrol continually improves performance through product innovation. This may result in color/ordor variations from time to time". So perhaps the Gold GC is better than the Green . . . Dunno if this GC is gold or green. Too lazy to break the seal.
Below is a crappy pic. The above text is in the red box.
09-01-2008, 06:51 PM
#89
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I used GC 0W30 for a few years and found I had a lot of engine noise ( valve trane and piston slap )upon start up after it had sat for only 1 hr or so.
I started using C 10W30 and the engine noises have disappeared.
Don't think I'll go back.
I started using C 10W30 and the engine noises have disappeared.
Don't think I'll go back.
09-01-2008, 07:27 PM
#90
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Ive gone through a few full synthetics since I had my car
royal purple- 5w-30
german castrol- 0w-30
amsoil-5w-30
so far I liked GC the best, the car was more quiter and it seemed smoother.....before my next dyno tune im switching to GC
royal purple- 5w-30
german castrol- 0w-30
amsoil-5w-30
so far I liked GC the best, the car was more quiter and it seemed smoother.....before my next dyno tune im switching to GC
09-02-2008, 09:26 PM
#94
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anyone ever try amsoil? they make several different oils for hot climates. it is a little more expensive but there is a reason why alot of the off road racing guys use it. i'm sure it would be worth checking into. they also have better oil filters too. only problem is that it is sometimes hard to find a dealer.(depending on where you live) 
09-03-2008, 11:19 PM
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The green oil is the best GC out there . It has the original formula with all the good ingredients . The new gold oil has been watered down due to cost constraints . Just like everything else ,lesser product for the same price . You only have to look at Mobil 1. Years ago it was one of the few real fully synthetic oils available , now , just a shadow of its former formula . Only Amsoil & Red Line -GC are true fully synthetic . I'm sure I'll be corrected if I'm wrong .
09-03-2008, 11:36 PM
#99
The green oil is the best GC out there . It has the original formula with all the good ingredients . The new gold oil has been watered down due to cost constraints . Just like everything else ,lesser product for the same price . You only have to look at Mobil 1. Years ago it was one of the few real fully synthetic oils available , now , just a shadow of its former formula . Only Amsoil & Red Line -GC are true fully synthetic . I'm sure I'll be corrected if I'm wrong .