Originally Posted By: Virtus_Probi
Originally Posted By: gfh77665
Of course I am referring to ST conventional oil.
I presumed the title made it evident.
So: ST CONVENTIONAL or Mobil 1. Both FREE. Which would you honestly choose.
I'd definitely have to go with the Mobil 1, as Subaru says I need to use synthetic in my FXT.
Our OM says: "5W-30 synthetic oil is required for optimum engine performance and protection. Conventional oil may be used if synthetic oil is unavailable. If 5W-30 synthetic oil is not available, 5W-30 or 5W-40 conventional oil may be used if replenishment is needed but should be changed to 5W-30 synthetic oil at the next oil change."
I understand your point, but there's wiggle room in these words, should something come up during a warranty claim. If I had a warranty issue that might involve an oil-related failure AND I had decided to use a quality mineral oil (I would never use mineral oil in a turbo Subie), you'd bet your butt I'd be sending out multiple samples to different oil analyzers AND keeping a large quantity of sampled oil from the sump to cover my butt, since it's likely that a quality 5W-30 will protect just as well, if not better, than the cheapest "5W-30 synthetic..."
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To the OP: what is the point of this thread? There will be absolutely zero people who would choose ST conventional over M1, if either choice would be free. What does that prove? Why not make it a LITTLE more fair and ask whether people would choose ST SYNTHETIC or Pennzoil conventional (PYB)? I bet the answer might be similar, but there might at least be a few who would choose PYB over ST synthetic.