I see that Amsoil 0w30 says it has A3 certs, but I thought A3 was >HTHS of 3.5 and Amsoils site lists it at 3.4. Amsoil dealers please chime in.
Note: I use Amsoil 5-30 in my vette, just noticed this discrepancy during research fro my other cars.
Note: I use Amsoil 5-30 in my vette, just noticed this discrepancy during research fro my other cars.