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Ok, now I'm confused. I'm looking for MAXIMUM protection for a high mileage, daily driven (hard)V8. Which (dino) oil is the best? I usually use 30W in the summer but in the winter I use 10W-30. Should I go with Rotella? What kind of additives package does this have?

Would it be possible to pay for an order of AutoRX with my paypal account?

Should I use a High Mileage oil when using AutoRX or should I just use a basic oil? Lothar Has Spoken

OK, I'm going to switch from Valvoline High Mileage 10W-30 to Penzoil High Mileage 10W-30. While I was picking up the new oil, I noticed Penzoil Truck/SUV 10W-30. Would this be better for me than the high mileage stuff? Anyone got any dirt on this stuff? My car weighs 4300 pounds with a full...

What about Moly/Zinc content? Does Penzoil have more of these additives?

Well, my problem is this. The main problem in my engine is that there's carbon literally caked on to the cylinder heads, camshaft, etc. It's nearly an inch thick and I'm amazed the engine even runs at all. But the point is that it is stuck on to where is is, and not circulating in the engine. If...

I'm thinking about trying Auto RX out. After seeing some pics of filters that have been used during the treatment, I see that they get REALLY sludged up/caked with junk. It seems to me that these filters were probably operating in bypass mode by the time they were changed, letting contaminated...

Has anyone used Auto RX in a smallblock Dodge/Plymouth V8? I'm curious as to how well it would work in an engine with loose tolerances such as this? Also, the timing gear is made of nylon- would Auto RX harm or weaken the nylon teeth? One other question- I've seen pics on the Auto RX website...

Hello- What is the consensus on Valvoline SL Maxlife 10W-30? Is this good stuff to use in a 120K mile mopar 318? What about the 30W version? Have there been any tests done on this oil? Thanks in advance