Basis for opinion?

Rich

 

I can't find the link, but there were tests done that the German Castrol Syntec was the best oil for the LT1.
When I started using it a long time ago in my bigblock '76 I saw cooler temps and a very slight power increase..nothing you can feel obviously.
And, for me, it's brand loyalty. Once I saw the changes in my '76 I was hooked.

Make sure it's the German Castrol. Apparently US Castrol Syntec is dino based, but 'reformulated'.

 

I can't feel any difference with different brands of oil.......that's BS.

 

This is ABSOLUTELY untrue!!! Mobil One full synthetic is NOT "based" on, or refined from "dino" oil. It is a fully synthetic manufactured oil, period. Almost all synthetics have a small amount of dino in them, because the additive package that is added to the base oil is suspended in dino. But this in no way effects the properties of the synthetic oil, and is NOT considered in the labeling requirement. Most companies today offer a cheaper blended oil, part dino part synthetic, but this is usually refected in the labeling.
Several years ago Mobil lost a court case against some other manufactures who claimed there refining process was so good that their oil was affectively a synthetic oil, and now addvertise theirs as synthetic. But Mobil has NEVER done this.

 

I took this right from the Mobile 1 website:

"All motor oils are made up of base oils and additives. In general, fully synthetic motor oils contain non-conventional, high-performance fluids. Synthetic blends usually use some non-conventional, high-performance fluids in combination with conventional oil.

To meet the demanding requirements of today's specifications (and our customers' expectations), Mobil 1® uses high-performance fluids, including polyalphaolefins (PAOs), along with a proprietary system of additives. Each Mobil 1 viscosity grade uses a unique combination of synthetic fluids and selected additives in order to tailor the viscosity grade to its specific application."

See synthetic oil starts out as dino oil then gets various additives that blend organic chemicals to make the oil "synthetic."

Royal Purple and RedLine do not start with dino oil at all, but have engineered their own synthetic base and then add the additives. That is why their oil costs so much more and can stand up to more stress than conventional synthetics. It costs a lot of money to come up with a fully synthetic base.

 

I'm not knocking Mobile 1 at all, it a great oil. Just pointing out the difference.

 

if you read that paragraph over again, it says nothing about synthetics containing dino oil. It says synthetic blends to, but mobil 1 is not a blend

 

Reads like it does.

 

Exactly. Black_95Formula, your miss reading the paragraph. Base oils can be either synthetic or dino. Manufactures refine or make oil in huge batches that contain no additives. These batches are refered to as BASE oil, and are often sold or traded to other manufactures (other brands). Most base oils are vertually the same, wether they are synthetic or crude based. It's really the additive package that makes an oil special and brand specific.

This is info only!

This paragraph explains what Mobil 1 is. "Each Mobil 1 viscosity grade uses a unique combination of synthetic fluids and selected additives in order to tailor the viscosity grade to its specific application."

 

You're all right; I picked bad info to use. I was trying to find a really good article that explained all this in detail, but wasn’t able to

What I meant to say is that the more expensive brands (RedLine/Royal Purple) use better ingredients that make the oil perform in a more consistent manner under harsh situations like high RPMs or heat, etc.

 

I have no problem with people using what they want, and these oils are very good but don't be fooled by the advertizing. There is nothing in these oils that you won't find in any high end synthetic.
For instance, if you read RedLines WEB site you'll find some interesting clues. One is they've only been around since 1979, and it appears they have only had a Chemist since 1984.
This is from their WEB site. Why do you think they used the phrase world's instead of our finest based stocks, in this sentance, I'll bet it's because they buy their "base stocks" from someone else, like Mobil, and when add their own unique additive package.
They also make a big deal on their site about this,: All multiviscosity oil use "polyol ester base stocks", it's how they get to be multiviscosity.
Finally there is obviouly a huge difference between synthetic base and crude(dino) base oils. But there is virtually NO difference between one companies, synthetic base oil and another. The real difference is in the additive package and these are some of the tightest kept secrets in the industry.
P.S. Mobil Corp. was one of the pioneers in Jet based lubicants.