PDA

View Full Version : Synthetic Oils



arkiejazz
07-24-2007, 02:08 PM
Here's an interesting article on synthetic oils:
http://www.waynesgarage.com/docs/synthetic_oils.htm

steve blake
http://tinyurl.com/kr3gt
http://tinyurl.com/l7oqh

Mike Van Veghten
07-24-2007, 02:27 PM
For what little it's worth...

Pretty much what he says I've found true. One statement about the racing/jet oil isn't completely true in my experience. Most of the racing (drag racing, road racing, bike racing) community I'm aware of, "does" use the polyalphaolefin based oils.

I've done a few of my own little tests many years ago. I've been using Mobil 1, 15-50 Racing Oil in my Sport Bikes and engines I've built over the years without any oil related failures. This includes gear oils and transmission fluid also.
The 299 Stude I'm currently working on will get Mobil 1 in the pan when its ready to run.

My first test (MANY years ago!), showed a small, but definant water temperature "decrease". That alown says positive things about it. That was Mobil 1, 15-50 Racing vs. Valvoline 20-50, Racing.

Mike

Mike Van Veghten
07-24-2007, 02:27 PM
For what little it's worth...

Pretty much what he says I've found true. One statement about the racing/jet oil isn't completely true in my experience. Most of the racing (drag racing, road racing, bike racing) community I'm aware of, "does" use the polyalphaolefin based oils.

I've done a few of my own little tests many years ago. I've been using Mobil 1, 15-50 Racing Oil in my Sport Bikes and engines I've built over the years without any oil related failures. This includes gear oils and transmission fluid also.
The 299 Stude I'm currently working on will get Mobil 1 in the pan when its ready to run.

My first test (MANY years ago!), showed a small, but definant water temperature "decrease". That alown says positive things about it. That was Mobil 1, 15-50 Racing vs. Valvoline 20-50, Racing.

Mike

Mark57
07-24-2007, 04:35 PM
Steve,
That web link you sent on the new Castrol synthetic for "classic" cars/trucks seemed like a good deal... would post the link, but I am at work and no access to the home e-mail.:)

Mark
57 Transtar

Mark57
07-24-2007, 04:35 PM
Steve,
That web link you sent on the new Castrol synthetic for "classic" cars/trucks seemed like a good deal... would post the link, but I am at work and no access to the home e-mail.:)

Mark
57 Transtar

DilloCrafter
07-24-2007, 04:38 PM
The article recommends, "We recommend replacing synthetic oil every 6,000 miles as opposed to 3,000 for regular oil."

I don't know about that. I've been told that Europeans (using regular dinosaur oil) change their FILTERS every 3k miles, but don't change the oil itself until 10,000 miles. I've also read somewhere that U.S. taxi drivers do the same thing. So, why can't that be done with synthetics, can't they last 10k miles or more with regular filter changes?

http://rocketdillo.com/studebaker/misc/images/Avacar-hcsdc.gif[/img=left]DilloCrafter

1955 1/2 Ton Pickup
[i]The Red-Headed Amazon
Deep in the heart of Texas

DilloCrafter
07-24-2007, 04:38 PM
The article recommends, "We recommend replacing synthetic oil every 6,000 miles as opposed to 3,000 for regular oil."

I don't know about that. I've been told that Europeans (using regular dinosaur oil) change their FILTERS every 3k miles, but don't change the oil itself until 10,000 miles. I've also read somewhere that U.S. taxi drivers do the same thing. So, why can't that be done with synthetics, can't they last 10k miles or more with regular filter changes?

http://rocketdillo.com/studebaker/misc/images/Avacar-hcsdc.gif[/img=left]DilloCrafter

1955 1/2 Ton Pickup
[i]The Red-Headed Amazon
Deep in the heart of Texas

Swifster
07-24-2007, 07:01 PM
You probably could change the oil at 10K with no issues. It depends on use. I would also agree that the filter needs to be changed more often than the oil.

I change the Mobil 1 in my Ranger every 5000 miles. I do this because I'm having the filter changed and the tires rotated at this interval anyway, so.....I just do it. I've put 167K on it, it doesn't burn oil, it doesn't leak oil, and inside the valve cover there is not one indication of sludge. The goal with this truck is 300,000 miles.

I have heard that synthetic can be a problem when breaking in an engine. The problem I've heard is that it works too well. It can hinder the rings seating. Now, I heard this about 10 years ago so this may not be the issue it may have been. I look now and see new Vipers, Corvettes, Porsches, Shelby Mustangs, Mercedes-Benz, etc., that come with a factory fill of Mobil 1 or a similar synthetic oil. The question will be how well flat tappet cams hold up under breakin.

---------------------------------------------------------------------------------------------------
Tom - Valrico, FL

1964 Studebaker Daytona - 289 4V, 4-Speed

http://i74.photobucket.com/albums/i280/Swifster/The%20Daytona%20File/Avatar%20Size/01-01-05TheStartingPoint.jpg http://i74.photobucket.com/albums/i280/Swifster/The%20Daytona%20File/Avatar%20Size/07-17-07FrontClipRemoved.jpg

Swifster
07-24-2007, 07:01 PM
You probably could change the oil at 10K with no issues. It depends on use. I would also agree that the filter needs to be changed more often than the oil.

I change the Mobil 1 in my Ranger every 5000 miles. I do this because I'm having the filter changed and the tires rotated at this interval anyway, so.....I just do it. I've put 167K on it, it doesn't burn oil, it doesn't leak oil, and inside the valve cover there is not one indication of sludge. The goal with this truck is 300,000 miles.

I have heard that synthetic can be a problem when breaking in an engine. The problem I've heard is that it works too well. It can hinder the rings seating. Now, I heard this about 10 years ago so this may not be the issue it may have been. I look now and see new Vipers, Corvettes, Porsches, Shelby Mustangs, Mercedes-Benz, etc., that come with a factory fill of Mobil 1 or a similar synthetic oil. The question will be how well flat tappet cams hold up under breakin.

---------------------------------------------------------------------------------------------------
Tom - Valrico, FL

1964 Studebaker Daytona - 289 4V, 4-Speed

http://i74.photobucket.com/albums/i280/Swifster/The%20Daytona%20File/Avatar%20Size/01-01-05TheStartingPoint.jpg http://i74.photobucket.com/albums/i280/Swifster/The%20Daytona%20File/Avatar%20Size/07-17-07FrontClipRemoved.jpg

Mark57
07-24-2007, 10:51 PM
Check this out - sent to me by Steve Blake:):

http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=7032644#top



Mark
57 Transtar

Mark57
07-24-2007, 10:51 PM
Check this out - sent to me by Steve Blake:):

http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=7032644#top



Mark
57 Transtar