*What ? (lol) ... I can tell the difference between a 5W20 PPPP vs. M1 5W30 - especially in the little Elantra where the 5W20 PPPP allows "freer" engine response and performance.
Originally Posted by csandste
"I tried M1 5W30 once in my Hyundai and while quieter / smoother it felt a little sluggish as compared to the fill of PPPP 5W20 I had used previously ."
Serious question as I was thinking of moving my Soul and my G.F.'s 17 Optima to 5-30 from 5-20. Always question remarks like this. Can you really tell whether an engine is quieter and smoother by going from 5-20 to 5-30? How about sluggishness from thicker oils? Without instrumentation can you "feel the difference"? Is this different than feeling the difference when you change oil, or feeling the difference when you use premium fuel in a car which calls for regular? I may have felt better when I tweaked oil brands or weights, used MMO or put three pounds more air in the tires, but is it just a placebo? Do you really trust your "feel"? I'm skeptical, but giving real thought to moving to 5-30 because of some of the points repeated in many HyunKia threads,
I'm questioning this in honor of Dr. John Brinkley who made radio station XCRF-- later home to Wolfman Jack, a household word across the south and midwest. People thought those goat glands raised their libido as well. Are some of these oil swaps just more goat glandery?
Apr 18, 2008 - John Brinkley, the goat-gland quack. As medical procedures go, having severed goat's testicles implanted in one's body to boost a failing potency sounds like the rankest quackery - and it is. But for well over 20 years, as late as 1939, the goat-gland transplant was regarded as a breakthrough of the first importance.
https://motherboard.vice.com/en_us/...testicle-grafts-to-boost-their-sex-drive