What's the consensus with the new Mobil 1 0w-40 fs version vs the old 0w-40 formula?
What was changed and why?
I had been running it in both my vehicles, a 2001 Dodge Durango with the 4.7 and a 91 Dodge power ram 150 with a crate 360 magnum.
I just did oil changes on both of them this last weekend and noticed that Mobil 1 has changed the 0w-40 formula.
Is it still as good as before? And is it still a good oil for my engines?
I live in Montana where winter gets very cold and is the longest season of the year.
That's why I decided on Mobil 1 0w-40 a few years back.
How does the new valvoline synpower 0w-40 stack up against the new Mobil 1 0w-40 formula?
I've been waiting for valvoline to come out with a 0w-40 and they finally have.
Before switching to Mobil 1 0w-40 I ran nothing but synpower 5w-30 in both my engines.
What was changed and why?
I had been running it in both my vehicles, a 2001 Dodge Durango with the 4.7 and a 91 Dodge power ram 150 with a crate 360 magnum.
I just did oil changes on both of them this last weekend and noticed that Mobil 1 has changed the 0w-40 formula.
Is it still as good as before? And is it still a good oil for my engines?
I live in Montana where winter gets very cold and is the longest season of the year.
That's why I decided on Mobil 1 0w-40 a few years back.
How does the new valvoline synpower 0w-40 stack up against the new Mobil 1 0w-40 formula?
I've been waiting for valvoline to come out with a 0w-40 and they finally have.
Before switching to Mobil 1 0w-40 I ran nothing but synpower 5w-30 in both my engines.
Last edited: