summer oil 60w, 70w ??

Discussion in 'Oil' started by ajlorh, May 11, 2011.

  1. ajlorh

    ajlorh Member

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    Any thoughts on running 60w oil in hot summer months (always above 60 degrees). Not as convenient as the good old 20-50w- but seems to make sense in 90+ degree oil

    Your thoughts would be appreciated.
    Thanks, ajl
     
  2. BUBBIE

    BUBBIE Well-Known Member

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    I ran 20/60 Redline oil in the High temps in Az.
    Really saw NO difference in oil pressure as 20/50 worked just as good..Never ran Hot enough with the oil cooler using 20/50...

    The 20/60 was 3$$ more a Quart, so I went back to the 20/50..

    Straight 60 is too heavy in my book

    signed....BUBBIE
     
  3. glider

    glider Veteran Member

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    I think you will find that the straight 60 wt is a bit too heavy. If you think of the orifice in the piston oilers that are basically used to cool the pistons and running a 60 wt would cut down on the flow from these, it may not be a good idea. Plus the tolerances in the newer motors are a bit tighter than the older engines that used that weight oil.
     
  4. Jack Klarich

    Jack Klarich Expert Member

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    IMO that is old school for pre evo and twin cam motors, They needed all the help they could get:s I ran Kendall Nitro 70 weight in my 1960 FL