[HWYSTR455]

I've used Valvoline, both the regular and racing, but switched from the racing due to it not having the appropriate additives for general street use. I've used rotella 10-40 almost exclusively for probably over 10 years, never had a problem there. I've used a bunch of others before that, Delo is pretty good, and a couple others.

I don't like GTX or any of the 'dark' oils, because, well, you can't tell when it gets dirty. So I go for the 'honey' gold stuff. But I did use GTX for a while.

I'm a fan of syn oils, but they are cost prohibitive. I get that they take more heat, and the additives don't break down as quick, but there are contaminants that get into the oil that requires the oil to be changed in X intervals, plain and simple. And some of those contaminants are not particular, they are solvent/chemical, so you can't filter them out regardless of what filter you're using. So I change it. At regular, REASONABLE intervals. For me, that's usually in the 3-5000 range, depending on use.

I've used additives in some situations, additional detergents in some cases can be helpful. Just use common sense in those situations. Stuck/noisy lifter? Yeah, MMO is ok, but I don't suggest running for any length of time. If it doesn't clear up within like 1000-1500 miles, you need to dump it, and fix the issue other ways. Common sense IMO.

No octane additives for me. Yeah, technically, it may raise the octane rating a point or 2, but the engine doesn't feel it, because it's cheating the rating system, that's it.

Now cleaners and water remover, that's different. You can run a fuel injector cleaner in a efi car, but I don't see a purpose running it in a carb car. Clean the filter, spray the carb down, disassemble occasionally, and done. Be careful not to fill up at questionable gas stations. Again, common sense. And sorry, if you have a 40+ year old gas tank, it's time to change it, or at least drop it and have it cleaned/checked. You're just asking for trouble if you don't. What is that called, 'play and pray'?

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