200 cid operating temperature

Discussion in 'Other Automotive Tech & Talk' started by 1981speedwagon, Apr 25, 2023.

  1. 1981speedwagon

    1981speedwagon Member

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    So my new fancy temperature gauge in it's first day of use ran at about 165-175 on cool rainy day highway driving to work. Idling at a drive through put me over 230 though, so, I think my fan isn't engaging correctly. What temp should I consider setting a warning alarm at to be safe?
     
  2. TeeEl

    TeeEl Senior Member

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    My personal preference is to have the fan kick on at 195° or 200°, and turn off at 185° or 190°...
     
  3. Krazy Comet

    Krazy Comet Tom

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    Happy accident?? Hardly.

    The fact Mobil 1 states SL & SM in their PDS indicates it's fine in gas engines. I use the current gas oils in my two valve 4.6(s), but those are geared toward fuel efficiency, thin out when hot. Which is exactly what I DON'T want in my oldies with wide clearance margins. Luckily I'm free to use what I want and so are you.
     
  4. Maverick_Ian90

    Maverick_Ian90 Member

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    I put AMSOIL Z-Rod 10W-30 in my 302. Once I fire it up and get it going, I'll let you know how I like it.
     

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