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Old 16 March 2009, 11:03   #21
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Originally Posted by Dirk Diggler View Post
I've found the price difference to be small, perhaps I'm a better shopper than you. Inferior IMHO, as it's not the genuine article.




That would be IYHO, and like a lot of your advice, somewhat doubtful.

It's true that Mercury don't have their own refinery, but they have their own specifications.

And no, I wouldn't use it in an Optimax, but I do use it in my Promax's, as it's the recomended Mercury oil.

I'd probably use Rockoil in your rattly old Suzuki though, as I expect it's ok for old tech motors
2x plugs per cylinder - efi and oil injection - boron coated cylinders and ceramic reinforced pistons - call that low tech? All the optimax differs in is an air compressor to atomise the fuel........

Do you ONLY use BMW oil in a BMW or Ford oil in a Ford then???
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Old 16 March 2009, 11:25   #22
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Do you ONLY use BMW oil in a BMW or Ford oil in a Ford then???
I use Mobil 1 in my BMW and my Ford, now that is a good oil!
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Old 16 March 2009, 11:27   #23
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I use Mobil 1 in my BMW and my Ford, now that is a good oil!
Ahh but surely not using Ford oil will break your engine.........

Seriously though are companies like Shell or Castrol etc going to make an inferior quality product that will damage your outboard - I think not somehow!!!
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Old 16 March 2009, 11:42   #24
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It's what the garage put in it last time it was serviced.
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Old 16 March 2009, 13:02   #25
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Dirk Digger, stop digging that dirt!

The thread was originally about buying two stroke oil for normally aspirated two stroke engines.
Rock oil is a top quallity product for this type of engine, it exceeds the marine standard TCW3 spec. I have used this oil without any problems with a saving of about 50% over the market leader for this type of application (quick silver)

IMHO and for my application Quik silver is an inferior choice as it’s the same spec but 50% more costly.

Finally may I draw your attention to YOUR Ribnet signature......
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Old 16 March 2009, 13:23   #26
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Rock oil is a top quallity product for this type of engine, .....
I don't doubt it, perfect for old technology!
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