Hi guys, this is my first post on this forum, I have a 2003 GMC Sierra (5.3) with 135,000 miles and 2005 Honda Accord with 97,000 miles. Both rigs are paid off and frankly I want to continue driving them until at least 200K miles (I don't miss vehicle payments). I grew up on a farm and my Dad swore by using Schaffers lubricants in everything. What are your recommendations for oil in these 2 vehicles to reach 200K miles? I would say its about 50/50 city driving and highway miles. Do you recommend Schaffers? AMSOIL? Or continue to use regular Valvoline that I've been using for years?
Thanks.
Thanks.