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  1. R

    Changing viscosity on an older engine?

    I've got a mildly built Ford 302 that I have been operating recently in ambient temperatures of 100*+. This is a 1969 block and low end. The engine has been heating up and I've noticed that the oil pressure is dropping off as this happens. I rebuilt the engine 49K miles ago and have been using...
  2. R

    Oil for my '69 Mustang 302

    I've got a '69 Mustang convertible with the original 302 engine in it. It was rebuilt about 47K miles ago and I switched to a 3.55 rear end, so I'm probably wearing the engine out at a much faster rate than with the original 2.79 gears. I have always used Castrol 10W30 in this engine and it is...
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