The only time I needed the yellow was for a generator with the Ford 4.2 engine, cast iron block and aluminum heads, the yellow was the spec antifreeze.


1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy