best synthetic oil to use.

allWorkNoPlay · Post by **allWorkNoPlay** » Mon Mar 20, 2006 6:55 pm

I don't know the history of synth oils nor do I care, but Mobil1 is a full synthetic under anyone's definition.

Castrol is the oil maker you are probably thinking of.

InDeX420 wrote:I read somewhere that Mobil 1 is a refined synthetic, where Amsoil is 100% fake full synthetic...
man what a lame first post...

InDeX420 · Post by **InDeX420** » Mon Mar 20, 2006 7:55 pm

Actually my love of amsoil begain at my first job as a mechanic helper...My boss at the time used mobil 1 synth for all his normal cars, which were BMWs mercades and other high end european stuff...But with the Porsches and ferraris he used only Amsoil...and I remember once he had me pour in some 0w30 in a ferrari, the engine was nice n hot and when the oil was almost fully empty the small little strings of oil dripping down seemed to defy gravity and just shot up and arched away...looked cool...and of course I know now it didnt really defy gravity but I was young and stupid at the time... :p

MNFatz · Post by **MNFatz** » Mon Mar 20, 2006 8:01 pm

Here's Mobil1 compared to Amsoil.

http://neptune.spacebears.com/cars/stor ... -life.html

I was just reading through the article. Here's a teaser quote:

"Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it."

product1620 · Post by **product1620** » Mon Mar 20, 2006 9:05 pm

MNFatz wrote:Here's Mobil1 compared to Amsoil.

http://neptune.spacebears.com/cars/stor ... -life.html

I was just reading through the article. Here's a teaser quote:

"Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it."

WTF, if thats the case then i'm never changeing my oil again. :scratch:
No, but seriously if ford conducted that study then why do they go by the 3 months or 3,000 mile rule?

Fastback86 · Post by **Fastback86** » Mon Mar 20, 2006 9:27 pm

product1620 wrote:
WTF, if thats the case then i'm never changeing my oil again. :scratch:
No, but seriously if ford conducted that study then why do they go by the 3 months or 3,000 mile rule?

Jiffy Lube...seriously.

MNFatz · Post by **MNFatz** » Mon Mar 20, 2006 9:54 pm

product1620 wrote:
MNFatz wrote:Here's Mobil1 compared to Amsoil.

http://neptune.spacebears.com/cars/stor ... -life.html

I was just reading through the article. Here's a teaser quote:

"Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it."
WTF, if thats the case then i'm never changeing my oil again. :scratch:
No, but seriously if ford conducted that study then why do they go by the 3 months or 3,000 mile rule?

I know manufacturers jack up the oil change intervals in the USA due to 'influence' from the oil industry. They recommend quite a bit longer of an interval overseas. 3000 is overkill. I religiously change my oil in my F-150 every 5000 miles and that's probably a big waste of money from everything I've read.

I'd really like to read a little more on the SAE tech paper if anyone can find a link. I'm curious what the right interval is.

txf · Post by **txf** » Mon Mar 20, 2006 10:00 pm

good synthetic can go 7K no problem

p8ntman442 · Post by **p8ntman442** » Mon Mar 20, 2006 10:50 pm

You cant say 30000 miles and be safe on all vehicles, so they say 3000, breaking down the viscosity is only one factor. Preexisting conditions, engine materials and tolerances, and the amount of abuse it sees, add more impurities to the oil.

crzyone · Post by **crzyone** » Mon Mar 20, 2006 11:26 pm

A good synthetic with a filter change can go 18,000 miles

Wow, good read, thanks for posting. I'll stick with Mobil 1

The Dark Side of Will · Tue Mar 21, 2006 8:51 am

allWorkNoPlay wrote:Actually, mobil 1 is a full synthetic. http://www.mobil1.com/USA-English/Motor ... aspx#FAQs1

My understanding is royal purple is not. I can get the proof if necessary.

Please do.

Pyrthian · Post by **Pyrthian** » Tue Mar 21, 2006 9:07 am

crzyone wrote:A good synthetic with a filter change can go 18,000 miles

Wow, good read, thanks for posting. I'll stick with Mobil 1

I 100% beleive this. I have yet to drain bad looking synth. the longest I dared let it go was 10k. with 1 filter change along the way.

Kohburn · Post by **Kohburn** » Tue Mar 21, 2006 11:25 am

http://www.royalpurple.com/techa/whyrpa.html

InDeX420 · Post by **InDeX420** » Thu Mar 30, 2006 12:10 pm

:bootyshake:
http://www.amsoil.com/testimonials/409000.aspx

http://www.amsoil.com/performancetests/g1971/index.aspx

and....
The warranty-
http://www.amsoil.com/warranty.aspx

The Dark Side of Will · Thu Mar 30, 2006 1:17 pm

product1620 wrote:
MNFatz wrote:Here's Mobil1 compared to Amsoil.

http://neptune.spacebears.com/cars/stor ... -life.html

I was just reading through the article. Here's a teaser quote:

"Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it."
WTF, if thats the case then i'm never changeing my oil again. :scratch:
No, but seriously if ford conducted that study then why do they go by the 3 months or 3,000 mile rule?

If left to its own devices, GM's oil life monitor tends to come up with 5-6K oil changes.

stimpy · Post by **stimpy** » Thu Mar 30, 2006 5:14 pm

Mobil doesn't market the 5,000 and 7,500 mile blends as Mobil One. They call it Mobil Clean. (At least now they do. If you have a bottle of synth blend that says Mobil 1 on it, I'd keep it. Like having a can of New Coke or Billy Beer.)

I think the reasoning is that so many people are conditioned to the idea of 3000-5000 mile oil change intervals, and don't see the value of putting an expensive synthetic oil in a car if they are going to be dumping it out 3 or 4 times a year. But if you can convince the consumer that their $25 in their crankcase will be protecting them for the next 15,000 miles or potentially more depending on driving habits, then they can start to perceive value. So they needed some kind of excuse to put a mileage number on their bottles of oil. Mobil Clean 5000 is conventional, Mobil Clean 7500 is synth blend, and Mobil One is the puro. Now they have an excuse to put a number on it and get people talking. Worked pretty well here.

Anyhow, I've been a member of the Mobil One cult for at least the past dozen years. I just drained the crankcase of my car after a year without a change, just regular oil filter changes with K&N oil filters and regular checking of oil level. The oil is still nice and slippery, I'd be interested to see what an analysis of it would show.

alltrbo · Post by **alltrbo** » Thu Mar 30, 2006 5:26 pm

You know, I think it's impossible to calculate how long the oil "lasts" without getting a proper lab test done. 3000, 7000, 30000, they're all just numbers if you don't know the chemical condition of the stuff.

A guy who worked for a dealership had a Nissan Pathfinder (I believe) come in with a rod that exited the block through a self-made escape hatch.
Reason, the guy never had the oil changed, not from day one. The original oil from the factory was in there. It lasted 57,000 miles. That's not to say you can go 50,000 miles between oil changes, but IMO it's saying you can't guess whether oil needs changed at 3000, or at 5000.

The Dark Side of Will · Thu Mar 30, 2006 9:07 pm

When I lived in Pensacola, I spoke with a Lubrication Engineers dealer who did 40,000 mile oil changes on her Grand Cherokee. She had access to the appropriate analysis tools, however.

Getting oil analyzed isn't rocket science... just gotta find a lab a drop a 20 on the table.

Amsoil will perform analysis on their oils.

product1620 · Post by **product1620** » Thu Aug 10, 2006 1:46 am

Bump to see what you guys think about the Q fully synthetic; Ive heard that quaker state makes good stuff, and they seem to be doing a lot of sponsoring for pinks and racing events. Sooo watcha think???

Kohburn · Post by **Kohburn** » Thu Aug 10, 2006 8:31 am

product1620 wrote:Bump to see what you guys think about the Q fully synthetic; Ive heard that quaker state makes good stuff, and they seem to be doing a lot of sponsoring for pinks and racing events. Sooo watcha think???

never been a fan of quaker state - too many gunked up high milage engines (valve covers full of waxy past) but never heard anything about their synthetic -- amsoil/mobile1/royal purple for me

Mach10 · Post by **Mach10** » Thu Aug 10, 2006 11:11 am

How about 15w40 Rotella Diesel Synthetic? :thumbleft:

I don't gots no cats to worry about, and I like the idea of over-the-top wear reducers.