I was hoping for a little help from you Jody or any other engine tech types. I bought a 01 response lx this year with the 325 monsoon. the specs say to run penzoil 10w40 marine. I cant find this oil anywhere up here. I am in Canada. Napa carries 10w40 non marine oil. Is this the same thing as marine oil. If not can you recommend an alternate engine oil to use. tx for any help.