Best Oil

What do you all find to be the best oil to keep your beast of an engine in one peice?

nick

I use Penzoil.

i use castrol gtx

Oil is oil.... Except for that watered down synthetic crap.
If you want a thicker oil get a 10W-30 blend, if you want a more runny blend get a 5W-30 blend. Other than that, all oil is the same.

I have a good friend who is a Tribologist, which is a Chemical Engineer who specializes in things that buffer friction, like oil. All oil is basically the same, but they are different because of the additives mostly. Synthetic is a superior lubricator, and although it does oxidize more quickly than conventional oils, (turns black really quick) it still way outperforms them. Do a web search for "Atomic Alex" and check out what she says about oils. You'll be glad you did.

i use penzoil, and i like it alot

What do you all find to be the best oil to keep your beast of an engine in one peice?

nick

Any warranty approved oil is very good. Many years ago I worked in a refinery lab and I know for a fact that Castrol had better extreme high temperature performance than most. This, however, is generally more important for air-cooled high-performance motors than Detroit engines. Back in the old days American cars made their power effortlessly through displacement. They ran cool and reliable. Castrol can't hurt but it isn't needed most of the time either.

Synthetics are different. For one thing there is less variation in the hydrocarbons that they are blended from. For another they use a Hydrotreated base stock that does not polymerize (gum). This makes for a beautiful but expensive oil.

For most people who are not racing any good name brand oil will do fine. No name oil might be okay and it might not. It comes down to the trustworthiness of whoever is guaranteeing the performance of the oil. Too cheap an oil can damage expensive engines but high priced oils are not needed. Besides, no matter which oil is used the valves are still gonna go eventually anyway.

Where Are You Getting Your Info.from. Synthetic Oil Is A High Based Mineral Oil,very Thick. Its The Same Theory As Diesiel Trucks. Syn.oil Is A Lubricant,it Improves Your Engs.performance As Well As Longevity.oil Is Not Oil. You Really Should Do Some Research!

Well, until recently I would have also said Castrol, but now that Lucas Oils is doing road car oils I'm going with them.

Gotta support a company willing to sponsor ISMA Supermodifieds. :biggrin:

Where Are You Getting Your Info.from. Synthetic Oil Is A High Based Mineral Oil,very Thick. Its The Same Theory As Diesiel Trucks. Syn.oil Is A Lubricant,it Improves Your Engs.performance As Well As Longevity.oil Is Not Oil. You Really Should Do Some Research!

humm, its funny how you seem to be saying most of us are wrong about synthetic oil. maybe instead of telling other people,(me included), to do some more research, you should. by the way im not saying your totaly wrong, because as we all know, well mostly, synthetic is saposed to make your engine last longer and ware less, and we all know it is a lubricant. and for god sake, Please Stop Typing With The First Letter Of Each Work Capitolized. it is annoying and makes it harder to read.

Just so you can read this better! Do yourself a favor go to THE ENGINE OIL BIBLE.COM! What's AMSOIL!

Diesel oil, preferably Shell or Esso.

well first of all, why dont you give me a valid webisght. i can not find any: the engine oil bible.com, or any thing like it. so why dont you give me the intire link so i just have to click on it.

and second, you said amsoil. so heres something from there sight.

"AMSOIL SAE 10W-30 XL-7500 Synthetic Motor Oil is compatible with conventional petroleum oils. However, AMSOIL does not recommend using a mixture of XL-7500 oil and conventional oils for 7,500-mile or six-month drain intervals. Engine oil additives are not recommended for use with AMSOIL XL-7500 oil."

gee it says right there you can mix amsoil with conventional oil so now whats your basis for saying that you can not? the only thing is says you cant do, or atleast they dont recomend is mixing it and leaving it for 7500 miles. do you know why? oh its beause over that many miles the conventional oil would break down and not lubricate well enough.
by the way heres the link for where i got my info, and im not going to respond to you on the other thread beacuse i see no sence in arguing with you on two different threads about the same thing. like i said in the begining i didnt want to argue with you in the first place becaue it has been discused many times and you dont have any real proof to what your saying, aside from syntherice being a better lubricant and lasting longer, duh, we all know that. like i said before you can mix the two, that was the point and i just gave you a sourse that you brought up that says you can.

http://www.amsoil.com/products/xlt.htm

WWW.AMSOIL.COM/THEN LOOK UNDER CATEGORY MOTOR OILS.

umm, whats your point. umm duh, they make motor oils.

My Point? Oil Is Not Just Oil. If Oil Is Just Oil Why Buy Name Brand Rather Than Family Dollar. Oils Oil? Its Less Expensive? Synthetic Oils Cost The Most!why?it's Top Grade!

Amsoil looks good on paper, I guess, but as of a few months ago, they hadn't subjected themselves to the ASI testing labs yet. If they have done this recently, I would like to know how they did. Oh, and all synthetic oil is not thick.

Where Are You Getting Your Info.from. Synthetic Oil Is A High Based Mineral Oil,very Thick. Its The Same Theory As Diesiel Trucks. Syn.oil Is A Lubricant,it Improves Your Engs.performance As Well As Longevity.oil Is Not Oil. You Really Should Do Some Research!

My information comes from experience since I worked in the industry actually doing things like measuring viscosity (thickness). For simple things I have no need for research but If I did, it would be via ASTM publications and not the Internet.

Some of your terms are unknown to me. What does "High Based" mean? Is the synthetic oil more "Thick" than the viscosity numbers indicate? What is the same theory as diesel trucks? Why does it differ from diesel cars? Which performance parameters are improved by synthetic oils? How was this measured and by whom? If "oil Is Not Oil" then what is it?

As you can see your post creates more questions than it answers. Please clarify.