Caltex Gold/Silver - what difference does it make?

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Caltex Gold/Silver - what difference does it make?

Postby C46 » Sun Jun 15, 2008 10:47 pm

Despite the slightly cheaper price of silver petrol, I notice that most Khmers seem to fill up their motos with the gold version. Which is better? Does it really make a difference to the way the bike runs, or to engine life? What should I be using in mine?
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Postby Chuangt2u » Mon Jun 16, 2008 12:07 pm

What should I be using in mine?


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Postby C46 » Mon Jun 16, 2008 7:44 pm

Er..... OK. Care to elaborate? Why's that better?
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Postby bar one » Tue Jun 17, 2008 6:35 am

Basically the higher the octane rating the better the fuel burn and hence the detonation. All moto's and nearly all motorbikes are designed to run on low octane fuel.

The money you save should be spent on regular oil change - $4 for a moto at you local Caltext outlet - every 1,000km is good.
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Postby Chuangt2u » Tue Jun 17, 2008 11:23 am

Yup, what B1 said.

My car is an old growler that runs better on Total regular than anything else here. I also seem to get more for my money at my local Total than I do at other places, although my judgment is based entirely on how much the needle moves... and at 1.36 a liter this morning, that's getting to be less and less.
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Postby cdrw » Tue Jun 17, 2008 6:28 pm

bar one wrote:Basically the higher the octane rating the better the fuel burn and hence the detonation. All moto's and nearly all motorbikes are designed to run on low octane fuel.
The money you save should be spent on regular oil change - $4 for a moto at you local Caltext outlet - every 1,000km is good.


True, 91 octane is best for most cars and bikes, but using 95 octane gas is a waste of $$ and won't yield more power or improved mileage. Higher octane gas is beneficial and needed only if the vehicles engine has a higher compression ratio of at least 11:1.
Good advice...save the extra cost for an oil change!
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Postby C46 » Tue Jun 17, 2008 7:15 pm

Thanks guys. That's clear now. I always use the lower octane stuff, and will continue to do so. Nice to be sure though. I suppose most locals buy the high octane because more expensive must be better, even in a ratty old Daelim!
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Postby SunSan » Sun Jul 06, 2008 11:05 am

As above.
Also, it depends on the compression ratio in the engine. The higher the ratio, the better it would be to use high- octane fuel. Something like that...
If you had a big Ducati you'd consider using super, if it's a scooter, silver will do.
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