Left over oil, First Oil Change

[versabbo]

Just changed my oil for the first time, i used penzoil full syn. My fifth quart bottle still have 6/8 left, can i keep it till the next oil change at least 4 month from now?

thanks

[LA02MAX]

It'll be alright for 4 months. Oil usually has a pretty long shelf life, but when opened, it could introduce moisture which you don't want circulating through the engine, so I wouldn't use it 6 months or so after opening it just as a precaution.

[marleyfan]

Don't waste your money by throwing out 6 month old oil. As long as you keep the lid and don't let moisture in it's fine for a year or more.