If you go with synthetic I would consider a PAO oil.
Do we really save money using cheaper Grp III synthetic oils? Two weeks ago, I priced these oils from the local Wal-Mart along with an advertisement from O’Reilly, so they could be up or down but again this is just an estimate. Let us say we use the conventional oil on the basis of the 3,000 mile oil change and we vary the synthetic grp III according to one’s liking. Again, this is to each person’s one belief and is only simple mathematical facts for comparison. We can also assume any conventional oil can be used up to 3,000 miles and all synthetics can be used for a minimum of 5,000 miles. This is just for looks and laughs okay so please nobody needs to get upset or to snap their sphincters.
GTX Castrol 5w-30 Running time 3,000 miles cost $13.00
$13.00 for 5 qts
at Wal-Mart. Running time 1,000 miles cost $4.33
Running time 100 miles cost 43.3 cents
Running time 10 miles cos 4.3 cents
Pennzoil Platinum
All weights Running time 5,000 miles cost $20.00
$20.00 for 5 qts Running time 1,000 miles cost $4.00
at Wal-Mart Running time 100 miles cost .40 cents
Running time 10 miles cost .4 cebts
Pennzoil Platinum
Running time 6,000 miles cost $20.00
Running time 1,000 miles cost $3.3
Running time 100 miles cost 33.3 cents
O’Reilly house brand oil
$1.89 qt. Tax included
5 qta approx. $10.00
Running time 3,000 miles cost $10.00
Running time 1,000 miles cost $3.33
Running time 100 miles cost 33.3 cents
Presently, I use PP5W-30, but recently I have been asking why not keep open minded and look at another approach? Perhaps use a conventional house brand oil{not} to keep the cost the same with twice the changes or perhaps change to Schaeffers or Amsoil with more bang for the buck, longer OIC, and positive results, which I am considering since the cost of grp III{super conventional} is the same as conventional oil? Again, if your whoopee is not a beater this is just my thoughts not the Gospels. I would have compared other grp IIIs but their prices are even higher with no better results.