Originally Posted By: 3800Series
Hi, new to the forums.....
Owner manual recommends 7500 for conv (doesn't list synthetic) in my driving conditions since all my trips are mixed interstate/highway 30+ miles.
Contacted Valvoline they said 3k miles or owners manual.
First off, welcome to BITOG. As you have seen, you'll get plenty of feedback. Here's mine--
Owner's manual says 7500 for conventional. You said your driving is all highway; highway mikes are easiest on oil so IMO yu coukld start with a 7500 mile oci without worry and work up from there.
I have used Valvoline conventional in the past, and tested it after 5k, the uoa was great and there was additive remaining.
To really save though, you may want to consider using a good synthetic and going to 10k or even further, depending on the uoa of course. Member tig1 runs M1 in all his vehicles with a 10k oci, and could probably go longer.
To answer the thread name question: yes in all likelihood you are safe with that oil at that distance.