I'm thinking safe (for the engine) to drive full throttle if you want.. Properly tuned diesel will not over rev like a gas engine. Naturally the faster the engine turns the faster it will wear out.. but.... isn't that the way it is with everything in life?

This is just my opinion.. If it works out for you, I take full credit, if not, I take no responsibility. ;-)

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Bill

Backyard Shadetree Mechanic, 30 years running.

1987 300TD
1988 300E (sold, sniff)
1999 S320
1981 Volkswagen Rabbit Truck (Diesel)
2001 Ford Expedition
1988 Suzuki Samurai
On my list to buy: R129, for me, and a R107 for my wife.