VPStang said:your can of stp is probably doing more damage than good....
never put in oil additives-especially in synth or synth blends...
You can switch back and forth as much as you would prefer, though I don't see the point. Stick with one, and let that be your choice. As for mixing oils, that is something I would definately NOT do. Mixing regular oil with synthetic oil only reduces the effectiveness of the synthetic oil, though it's not as if it will hurt anything since all oils are petroleum compatible with one another. This is one of the regulations placed on Motor oil companies by API (American Petroleum Institue).GREYFOX4INCH said:i was told by a few people that if you switch to a fully synthetic, you CAN NOT switch back to mineral/standard oil. but all the info i can find about this says that they are interchangable, even mixable. however, they say that mixing them takes away all the synthetic benifits and possibly reduces longevity. any info on this matter??
(sorry, i cant spell for sh**)
GREYFOX4INCH said:i was told by a few people that if you switch to a fully synthetic, you CAN NOT switch back to mineral/standard oil. but all the info i can find about this says that they are interchangable, even mixable. however, they say that mixing them takes away all the synthetic benifits and possibly reduces longevity. any info on this matter??
(sorry, i cant spell for sh**)
I just passed 30k miles on my 01 GT, and I use Amsoil full synthetic 5w-30 with an Amsoil oil filter. It works great. They do have one motor oil that is suppost to be better, and it has a 0w-30 weight, but is suppost to give a bit better wear protection. However, I honestly don't see where there is any benefit to running one over the other in applications like ours. It's your money, so it's your call. As for the best place to order Amsoil, directly from the Amsoil site would be best, and if you order ANYTHING Amsoil, you might as well sign up and become a preferred customer. I'm a preferred customer, and I've saved literally hundreds by being one in just the last year alone.BlueRuckus said:I have 33,000 on the clock. What weight should I go with Synthetic?
I can't seem to find Amsoil at my local auto parts stores. Is there a good place to order it? Either Amsoil or Royal Purple.
If that were the case, then I guess since I let my car sit for a whole month without starting it, it should of ruined it when I started it. Funny, it started right up, and idled fine.blkstangman88 said:thinnest oil? then u get a dry start and ruin ur rings and walls if u car sits for a day or 2?
I'm a user of Mobil1 5w-20 and whenever I come across oil threads like these, it's full of speculation. People hear things that may not be legitamate and pass the info to others. I seriously don't think synthetics have much of an advantage over dino, engines wear out and it's a fact of life. Unless of course, you're comparing flash points and cold pour points, that's where you see an advantage in synthetics. But that's about it.Dark Knight GT said:Seriously, synthetic oils have better lubrication properties than regular dino oil. Not only that, but their flow rates tend to be better as well.
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