+1 Except my coolant leak was from a hose that wasn't clipped on properly from behind where the radiator cap is. Fixed in 5 seconds

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Speed doesn't kill. Suddenly becoming stationary does!

Just looks for obviouse signs of leaks dont take it for granted. Coolant usualy goes white when it dries of so look for white stains in the enginebay or on the engine then you will no that you have a coolant leak.

check your rocker covers, they always leak in subys so make sure there not leaking. and finally chek around the turbo area.

+1 for rocker cover gasket.