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General Guide for vehicles currently
using leaded petrol with lead phase out in January 2006.
Vehicle petrol requirements with the
phase out of leaded petrol can be categorized geographically into those
operating at the coast and those operating inland. Vehicles can be further
categorized as those registered before 1996 and those registered after 1996.
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Inland (over 1200m altitude)
Vehicles which are currently operating inland on leaded petrol have the
following options.
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Vehicles built before 1996 - Use
93 RON Lead Replacement Petrol (LRP) or appropriate available Unleaded
Petrol (ULP) grade. Refer to the compatibility chart or consult your
local Vehicle Service Outlet to establish whether supplementary bottled
anti VSR additive is required when vehicle is operated at high engine
speed on ULP.
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Vehicles built after 1996 - Use
available Unleaded Petrol of appropriate RON rating. Refer Naamsa
database or your local Vehicle Service Outlet for further guidance.
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Coast (less than 1200m altitude)
Vehicles which are currently operating at the coast on Leaded Petrol have
the following options.
Note. Some vehicles may require an
engine adjustment. For further details refer NAAMSA database or your local
Vehicle Service Outlet for advice.
Notes
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The octane recommendations contained
in the Naamsa database are for well-maintained engines in standard
condition. An engine which is in any way modified away from standard
condition may have a different octane requirement.
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On reconditioning of the engine or
engine cylinder head, fitment of unleaded petrol compatible valve seat
inserts should be considered.
back to:
www.naamsa.co.za/unleaded/
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