Thanks, Hit! I am also making huge assumptions that the gauges are accurate - after my afternoon run I will zap her with my infra-red thermometer and see if I am in the real ballpark. Likewise, use the Mighty-Vac on the vacuum.

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1991 300 SEL
218,000 Km

"Xsbank's rules of mechanical intervention: Always go for the easiest solution first; 90% of what ails a gasoline engine is ignition; After that its all a WAG."