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xploitation
Nitrous Nuisance



Joined: 29 Sep 2005
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PostPosted: 14:20 - 29 Jan 2006    Post subject: Petrol Questions Reply with quote
1. Whats the difference between unleaded and super unleaded?

2. Does it make a difference to how well the bike runs?

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riichy
World Chat Champion



Joined: 12 Apr 2005
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PostPosted: 14:22 - 29 Jan 2006    Post subject: Reply with quote
only thing i can tell is the price Wink
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mrchips
World Chat Champion



Joined: 05 Mar 2004
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PostPosted: 14:24 - 29 Jan 2006    Post subject: Reply with quote
It makes a difference on high performance stuff. A tank of it in your cg125 won't do any favours.
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Whosthedaddy
Super Spammer



Joined: 11 Dec 2005
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PostPosted: 14:25 - 29 Jan 2006    Post subject: Reply with quote
Super unleaded is for high performance cars only
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Jack_Cheese
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Joined: 14 Jul 2005
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PostPosted: 14:33 - 29 Jan 2006    Post subject: Reply with quote
There's less difference between them than there is between summer & winter petrol.

Jack
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Teaman
World Chat Champion



Joined: 01 Dec 2004
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PostPosted: 15:49 - 29 Jan 2006    Post subject: Reply with quote
i think one smells more than the other,

Quote:
Texaco Premium Unleaded Petrol

Texaco Premium Unleaded Petrol is suitable for use in all petrol (spark Ignition) engined vehicles where the vehicle manufacturer recommends the use of an unleaded petrol with an Research Octane Number of 95 (RON 95).
Unleaded Petrol is not suitable for use in all vehicles and in cases of doubt the vehicle manufacturers should always be consulted prior to use.

Texaco Super Unleaded Petrol

Texaco Super Unleaded Petrol was introduced for use in petrol (spark Ignition) engined vehicles where there is a requirement for a high octane unleaded fuel. This grade exceeds the octane levels of Texaco Premium Unleaded Petrol and is equal to the octane level for both Texaco Lead Replacement Petrol (LRP) and (the now obsolete) Texaco 4* Leaded Petrol.
Texaco Super Unleaded Petrol is recommended for use in high performance vehicles which are able to use Unleaded Petrol, but have not, or are unable to have the ignition setting adjusted to run on the lower octane level of Premium Unleaded Petrol.


Texaco Lead Replacement Petrol (LRP)

Texaco LRP was introduced for use in petrol (spark Ignition) engined vehicles as a direct replacement for the now obsolete, 4* Leaded Petrol.
Texaco LRP has the same octane as the (now obsolete) 4* leaded grade and so no alterations to the ignition setting should be required. In addition LRP contains potassium based anti wear additive to help protect the engine from exhaust valve/seat wear.
LRP is recommended for use in vehicles which previously used 4* Leaded Petrol but is not recommended for vehicles fitted with a catalytic converter nor for continuous use in vehicles used for racing, towing or driving at high speeds for long periods of time.
In cases where such driving styles are required the vehicle manufacturer should be consulted as to a longer-term remedy, such as having hardened valve/seats fitted.
Texaco Lead Replacement Petrol contains a detergent additive to help keep carburettors, fuel injectors and inlet valves clean, maintaining driveability and performance



EDIT: forgot to add the link Confused https://www.texaco-online.co.uk/index.html?fuel1.html
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 16:03 - 29 Jan 2006    Post subject: Reply with quote
Hi

The only real difference is the octane rating (Optimax and the like are claimed to have more differences), with normal unleaded being 95 RON and super unleaded being 97 RON (used to be 98 RON, think it still is on mainland Europe).

If you engine is tuned for super unleaded then it will need it and failing to use it will risk serious engine damage. If the engine is not tuned to use it then it will have no benefit at all.

Some cars can retune themselves as they drive to take advantage of it but really that is just turbocharged performance cars (where they can adjust the boost to benefit from it).

All the best

Keith
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