Castrol wants you to switch to Syntec

[06RANGER]

Castrol wants me to switch and I did switch to Syntec 5w-20. Now I'm looking for a Castrol sticker to put on my truck.

 

[Auto-Union]

When you compare discount GC at $4 to Mobil 1 EP at $6...

 

[JAG]

Ok, I've gotten over my insanity spell in my last post. Syntec 0W-30, 5W-40, 10W-40 (SL version was at least), 5W-50 are great oils. The 5W-20 may be too but I honestly don't keep track of 20 weight oils. The rest of the Syntec line is much less impressive to me but that's fine because the above viscosity grades cover almost every gas engine's needs anyway. Also keep in mind that Syntec is less expensive than M1 and especially M1 EP. I'm not putting Castrol over Mobil. They both have strengths and weaknesses. Finding out what those strengths and weaknesses are is fun and is why a lot of us are on this forum.