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SHOPPING GUIDE, 2018
· Fax 1 (814) 446-6729  ·  www.the-roadster-factory.com
TUNE-UP
© The Roadster Factory
SPARK PLUGS
“TRF Handles Champion and NGK Plugs”
I replace my plugs every twelve-thousand miles as specified by the factory.
Learn to read your spark plugs, as you can tell a lot about how your engine is
running by the colour of your plugs and the condition of their electrodes when you
remove them from your car.  Problems in one cylinder as opposed to other cylinders
may also be evident.  TRF has always had good luck with Champion plugs which
were original on most models.  Some racers prefer NGK plugs, and you may wish to
try them one time if you have never used them.
Part No.
Description
No.Off  List Price  Sale Price
CHAMPION SPARK PLUGS
Spark Plug,
TR2, TR3, TR4, TR4A
4
4.55
Spark Plug,
TR250, TR6, TR7, Spitfire,
4-6
4.55
GT6, MGB; this is a cooler plug
Spark Plug,
TR250, TR6, TR7, Spitfire,
4-6
4.55
GT6, MGB; use this whenever a
hotter plug is required
NGK SPARK PLUGS
Spark Plug,
TR2 , TR3, TR4, TR4A
4
5.95
Spark Plug,
TR250, TR6, TR7, Spitfire,
4-6
5.95
GT6, MGB; this is a cooler plug
Spark Plug,
TR250, TR6, TR7, Spitfire,
4-6
5.95
GT6, MGB; use this when ever a
hotter plug is required
The engine in Steve Rudnicki's TR6
Keith Stewart detailing the engine in his TR6.










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