Hey Guys,

I have been using Mobil 1 5W-30 Truck and SUV in the winter, and Mobil 1 High Mileage 10W-40 in the summer. Then I always run a Fram Tough Guard or Xtra Guard filter.
I just wanted to know what other people run either with success, or if anyone has warnings. I am especially interested in people's responses that have very high mileages (over 200K) and are still running well, but I want to hear from everyone. I am thinking about switching to something with "anti-wear" additives, but I am really not sure where to go because the choices are pretty limited in my area. Thanks in advance to everyone who posts here!

Regards,

Thomas

 

Mobil 1 Synthetic or Castrol Synthetic

 

Royal freakin Purple brother! Best oil ever.

 

hasn't this thread already been done?........

anyways, i've only ever used Castrol oils in all my vehicles, and Fram filters (front to back, top to bottom).

 

Castrol magnatec in all my vehicles always

 

Valvoline Synpower Full Synthetic in the Blazer. My Truck Loves it.

 

Dyno showed different :P

 

Sorry if this thread has been done, a quick search turned up nothing, so I abandoned the hope of finding a thread about it.

If these results are representative of the rest of blazerforum.com, I am guessing that synthetic = good, standard = not so good. Now, if only there were some way to prove one over the other...

Regards,

Thomas

 

Quaker State 5w 30w Fram oil filters

 

I use Mobil1 5w30 and Wix filters