Originally Posted By: Bill in Utah
Originally Posted By: tpattgeek
While I do agree with everything you said, I'm also concerned about a couple of things. Maybe it's just my 1990's mindset.
1. I've been using M1 for 40k, so would there be a long term issue with switching to dino for the rest of the car's life?
2. In about 7 years, this car will belong to my son, and who knows where we'll live, what our trips will be like, etc. I don't believe switching back to M1 at 120k would make much since if needed? So I may just spend the extra money now and stick with one brand/type. Thanks for all the info!
EXCELLENT POST from dnewton3!
To answer your questions;
1. I sure hope not. I've gone from syn to conventional back to syn and back. I've done that for many vehicles for many years. Never a single oil releated problem. All the oil companies like Pennzoil, Valvoline, Mobil and such will say so on their web site.
They LOVE for you not to, but not a concern.
2. I operate my vehicles in well below zero to well above a hundred for hours on end. Until the middle 90s I only used 10w-30. Now I use 5w-30 conventional 98% of the time and all is fine. My highest mileage vehicle made it to 394,000 miles before it died. Was running perfect for all those miles with never having the valve cover off, an injector off or anything like that. I've got other vehicles with well over 200,000 miles and same.
There are VERY few situations with a Civic (or really most vehicles) that REQUIRE a syn oil. Need vs want is a big thing here.
Take care, Bill
I appreciate your info, but doing the change myself about every 6 months and spending less that $30 to complete with M1 and OEM filter, it really does let me sleep better at night, and I'm sorry to say that spending a few extra dollars every OCI isn't a huge deal. I understand conventional is fine for my lifestyle, but M1 sure does let me sleep better, and that's really all that matters, right?
