I have heard this! When I did my 5vz swap I drove around for days with the Bluetooth OBD2 scanner and temp readout on my phone to be sure it was actually running correctly, I've heard by the time the needle reads red it's over..


QUOTE=kerry;3686406]As an aside, from what I have read, Toyota senders are designed to sit in the middle of the gauge over a wide spread of temperatures. Serious 80 Series Land Cruiser owners don't like this because of head gasket problems with the engine so install a separate gauge which reads out specific temperatures in the 'normal' range.[/QUOTE]

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-1981 300SD 242k, stock - sold @ 250k
-1994 Toyota Pickup 4x4 R150F 5 Speed, 5VZ V6 swap.
-2004 Volvo V70-R 2.5T