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Speed limiter on diesel engine transport & passenger vehicles

what is the effect on engine performance, service interval and life span on vehilcles fitted with a speed limiter?

Most or all cars have speed limiters, so I don’t really understand your question.

Make model and year of car please. Service interval is listed in your owner’s manual.

More information would be useful.

Generally limited speed would result in safer longer live and better mileage.