Synthetic oil

[Seamus1]

Any thoughts on Royal Purple syhtnetic 5W30 oil?
Its API service SL appproved. I used it on my last oil change and got better throttle response. I live in the Northeast where you get alot of cold mornings, and it starts much better in the cold. Claims to help with fuel efficiency, haven't noticed that.

 

[oilburner]

Any synthetic oil will be good for it. To get increased mileage, you'll notice the most with a 0w-30 synthetic oil. Also, if you are regularly indulging in your newfound throttle response, I doubt you will see any increase in mileage. I perfer to use Amsoil synthetic, but I haven't heard anything bad about Royal Purple.

 

[Casper]

i used RP 10W-30 and it showed good oil analysis for the time that I ran it. Ive been trying other things since but the RP seemed to increase MPG and still showed good wear. Only thing is, it sheers to more like a 20wt oil after a long time so its not recommended for longer oil change intervals. I was concerned with that sheering and chose to run the 10W30. Probably a max of about 10K miles.

i ran mine to about 5000.

 

[Road Warrior]

You may want to check out this thread http://www.toyota-4runner.org/showthread.php?s=&threadid=31339

Happy Easter!