oboy oboy another synth oil chg comment :)

[ezbtr]

Ok so here's my thinking, I'm running Mobil1 full synthetic longlife 15K interval 10/30 oil, I'm at 4K and thinking at 7K to swap filter(Mobil1) out and top off oil. Mobl does say that their filter is good for 15K though. Comments? Thanks, Heinz

 

[JB]

Re: oboy oboy another synth oil chg comment

My ML's computer asks for a change of Mobil 1 and filter anywhere between 10K and 15K, depending on the electrical conductivity of the oil, the number of cold starts and the mileage with the oil at full operating temp. If I were a city dweller that might happen as often as 5K miles.

I don't feel good about the idea of changing the filter and not the oil.

If I didn't have the computer monitoring the oil condition I would change both at about 10K.

 

[Bob_VT]

Re: oboy oboy another synth oil chg comment

I run full synthetic in my Toyota Tacoma and I usually only go 5k - 7k between changes. I know the oil is still good but it is a left brain vs right brain thing and I feel accomplished that I let it go over 3k. It is a tough habit to break.

 

[i386]

Re: oboy oboy another synth oil chg comment

Here's what I'm doing...

Go to http://www.blackstone-labs.com/ and have them send you a free oil sample kit. They'll anylize the $%^# out of your oil and send you a full report about what's in it ($22.50). If you're interested in seeing how long you can safely run your oil they will do an extra test ($10). In the report they'll tell you long to go before the next oil change. They'll need a few oil changes to have enough data to let you know the max amount you can go though.

I've seen quite a few of the reports and it's pretty impressive. They can tell a lot about what's going on in your engine by finding out what's in your oil. You can read more that what I can tell you about it on their web site.

It's pretty interesting stuff to me and I'll be glad to post my reports here if y'all are interested. I'm still in my break-in period so they'll find lots of metals in there and can even tell me how well the engine is breaking in. On my second sample it should show much less metals so they'll know if it's done breaking in etc...

Cool stuff imo

 

[Boomyal]

Re: oboy oboy another synth oil chg comment

I think it is all hogwash myself. I am fully versed in the superior qualities of synthectic oil. It plain and simple blows dino oil away on all points. That being said, and some have heard it before, I never change my oil!

My E150 4.6 liter has 225k heavily loaded miles on it. I put ***oil 0w-30 weight in it at 6k miles. I use an ***oil 2 micron bypass filter and an ***oil depth filter in the OEM position. Every 20k miles I replace both filters and top the van off with 2 qts of fresh ***oil.

To date, the engine uses one qt of oil in 4-4500 miles and runs like a swiss watch. The oil is jet black and stains the he** out of my driveway if I spill any but when I spin off those filters, I can't even hang on to them when the oil cascades down the side of them.

Point being, I just can't get **al about oil change intervals. There has been a whole lot of time and money that I have not spent at Quicky Lube.

I also run the same setup on my '94 454 Suburban. I bought it in 1996 with 17K on it. It now has 44K on it. I guess it is time that I should change the filters and top it off with some fresh ***oil.

I would have run it in my '91 Toyota Previa Jelly Bean Van but I could not find a place to mount a bypass filter. Soooooooo, I just change the dino oil when the oil change lite comes on.

 

[i386]

Re: oboy oboy another synth oil chg comment

I think it is all hogwash myself. I am fully versed in the superior qualities of synthectic oil. It plain and simple blows dino oil away on all points. That being said, and some have heard it before, I never change my oil!

My E150 4.6 liter has 225k heavily loaded miles on it. I put ***oil 0w-30 weight in it at 6k miles. I use an ***oil 2 micron bypass filter and an ***oil depth filter in the OEM position. Every 20k miles I replace both filters and top the van off with 2 qts of fresh ***oil.

To date, the engine uses one qt of oil in 4-4500 miles and runs like a swiss watch. The oil is jet black and stains the he** out of my driveway if I spill any but when I spin off those filters, I can't even hang on to them when the oil cascades down the side of them.

Point being, I just can't get **al about oil change intervals. There has been a whole lot of time and money that I have not spent at Quicky Lube.

I also run the same setup on my '94 454 Suburban. I bought it in 1996 with 17K on it. It now has 44K on it. I guess it is time that I should change the filters and top it off with some fresh ***oil.

Yup, I have heard about the bypass. They make a kit for my truck too.
I'm a little skeerd of it though. I'd like to see someone do some oil sample tests on oil from a bypass system and see what they say about it. Maybe even more interesting if they don't know it came from a bypass setup. I'm surprised you haven't shared this with us b4 Boomie. It's pretty interesting stuff.

I'm not sold on synthetics because although it's slicker, it doesn't stick as well (or so I hear). So those 1st few revs actually have less lubrication than dino oil. Lubedude set me straight? Anyone else?

 

[SuperNova]

Re: oboy oboy another synth oil chg comment

If you check into it you'll find that there is no such thing as truly synthetic oil. It's a "dino" oil base with a synthetic additives package. Any oil that you run only gets more refined as you run it. The real problems are 1-The additive package gets depleted or overwhelmed and 2- The oil absorbs so many contaminants that it actually becomes abrasive and corrosive.

The reason for changing oil regularly is not because it breaks down as much as it is to get the contaminants out of the engine.
--
Stan

 

[ezbtr]

Re: oboy oboy another synth oil chg comment

Oh geez I know I'm tryin to save money, but I'm thinkin add a qt(like every 5-6K)change filter and oil at 10K like SBN was sayin. Even though filter and oil is rated at 15K.

 

[Bob_VT]

Re: oboy oboy another synth oil chg comment

When I was in the service ALL of the heavy equipment were oil sampled. It was a great savings considering how much the filters and oil was for the big diesels.

Yes a very in depth report just like a blood test. For the amount of a good oil sample..... I can afford the oil change.

 

[Boomyal]

Re: oboy oboy another synth oil chg comment

... So those 1st few revs actually have less lubrication than dino oil.

Not so i, synthetics go where no oil has gone before and it gets there quicker too. It is less affected by temperature, both higher and lower. In the arctic where dino oil turns to gel, synthetics still flow. In fact, synthetics were first developed for jet engines where the front shafts ran ice cold and the rear shafts ran red hot. The synth oil was the only thing that both flowed at low temp and did not burn up on the back end.

In the early days when oil came in cardboard cans with metal ends, they couldn't put synth oil in them because they would leak all over the place. They had to package it in all metal cans. I still have a couple of those old all metal cans of ***oil. Once they started using the plastic bottles it became a moot point.

 

[i386]

Re: oboy oboy another synth oil chg comment

Good stuff to know Boom. Though I have never used one, I remember the paper cans and the spout you used that pierced the can. Oil spout? Heh I can't even remember.

The bypass is neat stuff (I'm still skeerd of it though). If I remember what I read is that standard oil filters can only be made to filter down to so many microns before it's too much pressure on the engine. The bypass filter on the other hand, filters down to much smaller particles without increasing oil pressure (or maybe it is a lot of pressure, but just doesn't effect the engine).

Here's one for ya. The filter in my V8 Titan is the same size as the one in the wife's 4cyl Honda Civic. Crazy.

 

[Boomyal]

Re: oboy oboy another synth oil chg comment

...The bypass is neat stuff (I'm still skeerd of it though). If I remember what I read is that standard oil filters can only be made to filter down to so many microns before it's too much pressure on the engine. The bypass filter on the other hand, filters down to much smaller particles without increasing oil pressure (or maybe it is a lot of pressure, but just doesn't effect the engine)

All true i, the bypass setup has a regulated orifice that limits the flow thru it to 10% of the total flow. When the filter gets plug up, the oil simply quits flowing thru it and continues to go thru the normal filter and it's internal or engine bypass if necessary. You can easily tell by feeling the bypass filter, If it accepting oil it will be hot. If it is cold/cool/tepid, it is plugged up. The object, of course, is to change it before that point. 15K miles is the recommended. I ususlly let mine go to 20K but a few times it has gone cool on me before I changed it.