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1994 Ford Thunderbird Question: Can you add a 20/50 oil to 4 qts. of 10/40 when changing the oil? 225k miles.

 

Question

tcfheckel, 4.6L V8, Bellevue, WA, February 19, 2014, 21:21
 Enthusiast

A mechanic said he adds 1 qt. of 20/50 to 10/40 when he changes oil. I asked about the "no Zink" in the new oil not good for older engines. I've used 10/40 for many years, now. Do you think this is a good idea?

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  • Answer #1

    asksteevies February 20, 2014, 06:14
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     Master

    Yeah thats good , everybody has a diff opinion about oil
    I personally put 20/50 in everything i own , rite down to zero - turns
    Never had problem

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  • Answer #2

    Greg's Orange Auto (13269 Answers) , Orange, CA - (714) 361-9386
    globalhelper February 20, 2014, 06:40
     Master

    try lucas oil additive,its better than 20/50

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    pushrod, February 20, 2014, 07:27
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     Master

    Good stuff!!

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    asksteevies, February 20, 2014, 07:30
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     Master

    I have dixie chopper , thats required , thats what i use
    The lucas 15 40 diesel oil...awesome stuff..

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