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Spark plugs

Hi Audi gurus.

Have a question for you folks.

Car: Audi '88 - Q90
I need to change the spark plugs on my car. I bought
5 new spark plugs at Robbins. They gave me WR7 DP. The
service manual specifies W7 DTC. Are these equivalent or
should I go for the W7 DTC ? I called Robbins - they said
the two were equivalent. Are they really ? I looked at the
spark plugs - the W7 DTC has 3 electrodes (is that what they
are called ?) at its tip whereas the WR7 DP has only one ?
Which one is better ? The W7 DTC are priced higher than the

Email: mdholaki@BayNetworks.com (x 61261)
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