drivetrain longevity
07-13-2006, 08:13 PM
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drivetrain longevity
Performance aside, is there any benefit to regular or periodic use of 100 0ctane fuel to preserve or protect the 993 drive train. Has friend return from Italy recemtly who claimed all gas was 98 octane and that Eurocars were designed for it. T or F?
Jack
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07-13-2006, 08:53 PM
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1. No benefit.
2. Different calculation of octane rating. US 93 = Euro 98:
There are different accepted standards used to measure the anti-knocking characteristics of gas. The octane number you see at US pumps is the average of two such octane numbers; the Research Octane Number (RON) and the Motor Octane Number (MON). This average number is sometimes referred to as the Anti Knock Index ("AKI") or the US Cost of Living Council method ("CLC"). The RON and MON numbers are determined by American Society for Testing and Materials ("ASTM") laboratory tests. Thus, US octane numbers are described as, e.g., 93 AKI or 93 CLC. The equivalent RON number in other countries would be 98.
The RON method determines low speed and low load knock characteristics while the MON method tests high speed, high load, high temperature conditions such as exist during periods of high speed power accelerations, hill climbing, or any period of high power output. The MON method results in a higher octane number & is the more relevant value for racing.
From this thread had you searched.
2. Different calculation of octane rating. US 93 = Euro 98:
There are different accepted standards used to measure the anti-knocking characteristics of gas. The octane number you see at US pumps is the average of two such octane numbers; the Research Octane Number (RON) and the Motor Octane Number (MON). This average number is sometimes referred to as the Anti Knock Index ("AKI") or the US Cost of Living Council method ("CLC"). The RON and MON numbers are determined by American Society for Testing and Materials ("ASTM") laboratory tests. Thus, US octane numbers are described as, e.g., 93 AKI or 93 CLC. The equivalent RON number in other countries would be 98.
The RON method determines low speed and low load knock characteristics while the MON method tests high speed, high load, high temperature conditions such as exist during periods of high speed power accelerations, hill climbing, or any period of high power output. The MON method results in a higher octane number & is the more relevant value for racing.
From this thread had you searched.
07-13-2006, 08:58 PM
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Originally Posted by pedsurg
Performance aside, is there any benefit to regular or periodic use of 100 0ctane fuel to preserve or protect the 993 drive train. Has friend return from Italy recemtly who claimed all gas was 98 octane and that Eurocars were designed for it. T or F?
Jack
Jack
http://www.btinternet.com/~madmole/R...RONMONPON.html
07-13-2006, 11:09 PM
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Maybe if you soak the drivetrain in the 100 octane gas twice per year there will be a longterm preservative effect. Mike In Chi may be able to help us here.........
07-13-2006, 11:20 PM
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It is said by some that "spirited driven" 993's might experience fewer drive train issues (? cel) than causually driven cars (Is this true?). I posted the topic to see if a cleaner fuel with less additives would offer additional benefits..
Jack
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07-14-2006, 12:02 AM
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Originally Posted by pedsurg
It is said by some that "spirited driven" 993's might experience fewer drive train issues (? cel) than causually driven cars (Is this true?). I posted the topic to see if a cleaner fuel with less additives would offer additional benefits..
Jack
Jack
people argue both sides of this...
some say this will cause a CEL FASTER due to high stress and other's say it blows it out all and avoids CEL
I'm not sure there is any solid scientific proof one way or the other
