Honda-recommended API Service Codes

Oct 21, 2012 3 Replies

My '94 Accord's Owner Manual recommends SAE 5W-30 engine oil with API Service SG or SH. However, the latest Castrol 5W-30 GTX oil that I have been using comes only with API Service SN, SM, SL, SJ codes. I suspect these codes might have superceded the older SG and SH codes, but I am not sure. Anybody knows more about this?


You are correct.

Your owner's manual specifies SG or SH *at minimum*.

cameo wrote in news:k61rm0$l0v$ snipped-for-privacy@dont-email.me:

You are correct.

The designations go sequentially, starting with SA, way, way back. What they'll do after they hit SZ, I'd love to know.

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