[citrustaco]

Check what this guy (jestal) is saying I found it to be very interesting reading. He has some interesting ideas on how long synthetic oil last vs regular dyno. (no difference) Also at the end he talks about higher octane fuel. I run synthetic and from what he says it is just a waist of money. If you have an hour to kill read all his posts.

http://p083.ezboard.com/ffjr1300own...essageRange?topicID=536.topic&start=1&stop=20

 

[99redyota]

i agree with him, ive never been completely sold on synthetic oil

i would think you would still need to change your filter every once in a while because you always can get contaminents in your engine

and i wouldnt feel comfortable at all running an engine the way i drive for longer than 4,000 miles with out changing the oil, ill stick to my good ole valvoline every 3,000 miles but hey its your rig do what you want

 

[mudferret]

Synthetic oil does have it's benefits, long life has never been a benefit I've been willing to toy with however. I made the switch to M1 because it cranks over much, much easier at -40 to -70. At least when I was living in an area that had winters that cold...

 

[ARB1977]

Here we go again. It goes back to the same ol story, someone run conventional oil for 10K then do analysis on it and see what you get. Too many people get too many stories but are chicken to try it in their own engines. Just seeing what this so called GM engineer saying about synthetic oil it does has its beneifits but ill bet you he has never done an oil analysis on convetional oil after 10K. To me the test show that synthetic is a much better oil even at extended drain intervals. Im currently running redline 5W-30 and its changed a 5K only because i got suckered in getting the prepaid maintence up to 55K but once thats done ill switch over to amsoil and run it for 1 year without doing a filter change in between and test that oil and if it comes back normal then its all good after that. So while people are spending hundreds of dollars a year on dino oil changes ill be saving money with just one oil change.

 

[cluster1ne]

Here we go again. It goes back to the same ol story, someone run conventional oil for 10K then do analysis on it and see what you get. Too many people get too many stories but are chicken to try it in their own engines. Just seeing what this so called GM engineer saying about synthetic oil it does has its beneifits but ill bet you he has never done an oil analysis on convetional oil after 10K. To me the test show that synthetic is a much better oil even at extended drain intervals. Im currently running redline 5W-30 and its changed a 5K only because i got suckered in getting the prepaid maintence up to 55K but once thats done ill switch over to amsoil and run it for 1 year without doing a filter change in between and test that oil and if it comes back normal then its all good after that. So while people are spending hundreds of dollars a year on dino oil changes ill be saving money with just one oil change.

And maybe im alone here, but i completely disagree with that. I changed oil at a dealership for about a year, and i dont care if it was synth or conv it still got dirty, contaminated, and blacker then hell. Its your truck, and i know you will do whatever you want with it, and thats fine by me. But as for my truck, ill stick to the 3k intervals..

 

[Mike]

And maybe im alone here, but i completely disagree with that. I changed oil at a dealership for about a year, and i dont care if it was synth or conv it still got dirty, contaminated, and blacker then hell. Its your truck, and i know you will do whatever you want with it, and thats fine by me. But as for my truck, ill stick to the 3k intervals..

I change my oil religiously at 3k intervals. I also rotate the tires and lube everything up. It's a great idea to get under your truck on a regular basis and check everything out.

Later,
....Mike

 

[ARB1977]

And maybe im alone here, but i completely disagree with that. I changed oil at a dealership for about a year, and i dont care if it was synth or conv it still got dirty, contaminated, and blacker then hell. Its your truck, and i know you will do whatever you want with it, and thats fine by me. But as for my truck, ill stick to the 3k intervals..

Since using redline even at 5K the oil looks pretty damn good i can still go even further which to me tells me that the engine pretty damn clean internally. If your oil is black you may have sludge or some other crap in your engine and not even know it. Beleave what you want to beleave but i strongly beleave in synthetic. Remember a clean engine is a happy engine. Why is that people have to use sea foam at a certain mileage when they use regular dino oil, ill bet you if they use synthetic oil they will never have that problem but hey what do i know.

 

[Bryanccfshr]

I have 7k miles on the factory oil in our bmw. I used to do 6 month 3k OCI's in the tacoma on conventional oil. I am now running mobil 0w30 and clinching my teeth but going for a year with an analysis and filter change at the halfway point.

With 3 vehicles I have been disposing of more than 20 gallons of waste oil a year. I am trying to cut back on the waste. There are different performance characteristics to different base oils. For oxidative stability, reduced volatility, viscosity index, cold weather performance and shear stability the higher end basestocks have an advantage. The additive packages in synthetics also tend to be better, that is what contributes to cleanliness.

Oil Color is reallly insignificant to its performance. Learn about the blotter test to test for insolubles or bite the bullet and spend 20 buc ks on an analysis.

Most conventionals today can go 5k miles or 6 months.

Synthetics vary and not all are equal. Synthetics do not lubricate any better than conventional(extreme temperatures excepted). If the oil is not b eing pushed by extreme requirements or by extended intervals they are a waste of money. That being said I, a long time advocate of conventional oil no longer have any in anything but my lawn mower.

 

[Bryanccfshr]

One more thing. An ME is not a specialist in lubrication or tribology. Would you let a dentist perform open heart surgery??

 

[citrustaco]

He is now on Bob is the oil guy site. It is interesting reading.

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=1;t=010447;p=2

 

[Gammon]

And maybe im alone here, but i completely disagree with that. I changed oil at a dealership for about a year, and i dont care if it was synth or conv it still got dirty, contaminated, and blacker then hell. Its your truck, and i know you will do whatever you want with it, and thats fine by me. But as for my truck, ill stick to the 3k intervals..

My last Taco was a 98 (V6 4wd 5spd) after about 7500 miles I switched to Castrol Syntech 5-50 and ran it for about 5k miles. The oil looked almost as good coming out as it did going in. It did NOT turn black. I'm not sure what that's worth but it would seem to indicate that the oil was still in good shape. In my '04, I am running Royal Purple 5-30, but its too early to make any observations. I plan on changing the synthetic every 6k or twice a year, whichever comes first. I think twice a year is sufficient maintenance (lube, fluids,etc.).

 

[1bille1]

Here we go again. but once thats done ill switch over to amsoil and run it for 1 year without doing a filter change .

DOn't be foolish- extended drain interval on the motor oil has nothing to do w/ the change interval for the oil filter. Unless you are running a larger filter or a dual remote filter( that has more media to trap contaminants)- stick w/ recomended filter change interval.

I've got 200,000 miles on my motor using 20K mile+ change interval.
(dual remote filtering)

NO benefit there

 

[Fernslinger]

I have been doing extended drain intervals with Amsoil on my truck since year one. It is a 95 and has zero engine problems. I am sold on synthetics and never will go back to dino oil.

 

[ARB1977]

DOn't be foolish- extended drain interval on the motor oil has nothing to do w/ the change interval for the oil filter. Unless you are running a larger filter or a dual remote filter( that has more media to trap contaminants)- stick w/ recomended filter change interval.

I've got 200,000 miles on my motor using 20K mile+ change interval.
(dual remote filtering)

NO benefit there

Yea thats true but what about those filter magnets that attach to the oil fitler and it supposed to more crap than your regular filter would. Amsoil claims that there filters can go up to 12,500 or 1 year. Thats about what i drive a year anyway. Since our trucks are a pain in the ass to change filters i figure if im going to take the skid off to change the filter i minus well change the oil while im at it.

 

[Gammon]

DOn't be foolish- extended drain interval on the motor oil has nothing to do w/ the change interval for the oil filter. Unless you are running a larger filter or a dual remote filter( that has more media to trap contaminants)- stick w/ recomended filter change interval.

I've got 200,000 miles on my motor using 20K mile+ change interval.
(dual remote filtering)

NO benefit there

I have a remote kit I am about to install on my '04 V6 4x4. I am having trouble finding a location for the remote filter and don't like the neoprene hose that came with the kit, I would prefer something a little more bullet proof, a la stainless steel braided hose. As of now, I intend to mount the filter on the frame rail just behind the radiator on the driver's side, and will probably make my own hoses from fiitings and ss braided hose from Summit. How did you do your installation?

 

[Owyhee]

Disposing Of Oil!!!

I have 7k miles on the factory oil in our bmw. I used to do 6 month 3k OCI's in the tacoma on conventional oil. I am now running mobil 0w30 and clinching my teeth but going for a year with an analysis and filter change at the halfway point.

With 3 vehicles I have been disposing of more than 20 gallons of waste oil a year. I am trying to cut back on the waste. There are different performance characteristics to different base oils. For oxidative stability, reduced volatility, viscosity index, cold weather performance and shear stability the higher end basestocks have an advantage. The additive packages in synthetics also tend to be better, that is what contributes to cleanliness.

Oil Color is reallly insignificant to its performance. Learn about the blotter test to test for insolubles or bite the bullet and spend 20 buc ks on an analysis.

Most conventionals today can go 5k miles or 6 months.

Synthetics vary and not all are equal. Synthetics do not lubricate any better than conventional(extreme temperatures excepted). If the oil is not b eing pushed by extreme requirements or by extended intervals they are a waste of money. That being said I, a long time advocate of conventional oil no longer have any in anything but my lawn mower.

I hope your are recycling the oil and not actually disposing of it!

 

[Chas]

I run synthetic oil, and high performance filters. I change it at every 3000-4000 miles. What i have learned from my chemistry classes is that the properitys of the oil contribute to its longer life and better overall performance. If you dont want to run it, don't.

 

[ciollika]

And maybe im alone here, but i completely disagree with that. I changed oil at a dealership for about a year, and i dont care if it was synth or conv it still got dirty, contaminated, and blacker then hell. Its your truck, and i know you will do whatever you want with it, and thats fine by me. But as for my truck, ill stick to the 3k intervals..

You are definately not alone. I am with you 100%. I use Valvoline synthetic and still change oil at strict 3000 miles intervals. I've been working at a lube shop for over 3 years and it seems like the oil gets black (contaminated), no matter if its conventional or synthetic, with extended drain intervals. If you look on the bottle of most oils, excluding amsoil and a few others, it says for best protection change every 3 months or 3000 miles. just my :2cents:

 

[Bryanccfshr]

I hope your are recycling the oil and not actually disposing of it!

No fuckstick I am dumping it directlly into a river by my house. :flipoff1:

 

[tanKoma]

No fuckstick I am dumping it directlly into a river by my house. :flipoff1:

HAHAHAHA :rofl: