Just did oil change last night, recalled hmmm no greased lightning in the crankcase. The last time I used the additive was just to empty the can. Filled my crankcase up with Mobil1 full synthetic, that should a been good enough right? Well, not for me , seat of pants seemed lacking a bit. So went down to the local NAPA and grabbed another can and added it. After a bit of driving was happy again . My seat of the pants testing method sure isnt very scientific. Still hey, really think will be buying more in the future ! Anyone else had similar results?
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