Here's what I worte of it on another board, since I';d never used it before:
HOLY F**KING S**T!
What a huge difference! I have been using mostly dino oil the last 7-8 years I've had the car and just changing it when it gets black (~2000 miles). I've also tried Mobil 1 a few times and didn't notice anything different.
I've also tried Marvel Mystery Oil to quiet the lifters, which always helped a little, and even Lucas Oil Stabilizer a few years ago, which didn't do anything but make the oil pressure drop to almost zero when I stepped on the gas.
This is my tired old L03 with about 200K.
I drove it around the block a couple of times and it got real quiet. All the ticking lifters finally shut up after 5+ years of sounding like a bomb. I can't hear them at all and almost burned my face trying to hear them ticking again.
The throttle response is just a little quicker, but a whole lot smoother. The whole engine runs and idles effortlessly now. The tachometer stays perfectly still at idle for the first time in years. The oil pressure gage has finally made up it's mind, too. I thought for sure the oil pump was on it's way out.
No blow by at all. Zero. There really wasn't too much before, but now there is none at all so far.
The engine temperature stayed just over 100 while I was driving it, when it's usually just below the 200 mark, and when I was at idle, it never even got hot enough for the fan to kick in. It usually only takes about 2 minutes at idle for the temp to rise enough to turn the fan on (about 220), but now it looks like it will take 10-12 minutes for it to ever get that hot.
I drove it through a drive-thru where there are walls on both sides of the car (they do that so you can't drive off if they take too long, bastards
) where I can usually hear all the weird noises the car makes, and they are almost all gone. Just the mellow rumble of the engine.
The oil is actually purple when it comes out of the bottle and looks like grape kool-ade, but it doesn't taste like it at all.It was nearly crystal clear on the dipstick, with only the slightest tint of purple. I got 10W40 since it's getting hotter and the engine is so old.
I don't see any leaks yet, but it's only been about 10 miles. The old seals may leak with full synthetic, but it never did with the mobil 1. I am usually 1/2 a queart down every 2000 miles or so when I change it. I'm curious how much of the purp it will burn off.
$7 per quart had me pissed off to the point that I had put off trying it for several months, but it's worth it.</X>