Originally Posted by ChrisD46
Super Tech Synthetic 5W30 $17
QSUD Synthetic 5W30 $19
*Which of the above would you trust and use for up to a 7,500 mile OCI ?
For the vehicles you list, none.
Change your oil at 5K, if you are a normal 50-50 driver. If mostly-all city / stop & go and warmups for 10 minutes b/4 work, then declare yourself a more severe driver and change at 3.75K. Any manual-spec oil is fine for 3.75 to 5K OCIs. But I am not a fan of house-brand oils that are cheaper. Unless you are in dire straits financially.
I like Pennzoil Platinum, Castrol Edge black bottle, Valvoline Advanced, Mobil-1 and Quaker State Ultimate, for 5K OCIs with the vehicles you list. I would add all the boutique oils available like Amsoil,. Schaeffers, RedLine, Motul.....etc..... except most-all here are financially better-suited for common prices found.