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E34 (1989 - 1995)

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  #1  
Old 09-20-2012, 04:22 PM
green95 green95 is offline
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Mein Auto: 1995 bmw 525i touring
synthetic oil

im still not quite sure what kind of synthetic engine oil to put in my 95 525i does anyone know what is recommended or what works best/
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  #2  
Old 09-20-2012, 06:31 PM
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BMWFatherFigure BMWFatherFigure is offline
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Dunno how far your veh has gone or how hot/cold it is where you live. My 98 735il with 150km runs fine on Castrol Magnatec in Perth WA (Australia not Washington Statae). I checked with Castrol Helpline first. Try the same, I found them very helpful and down to earth..
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  #3  
Old 09-20-2012, 08:01 PM
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supertech777 supertech777 is offline
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Casrol full synthetic 5w30 all every 4500 miles is what I use , and it works well out here in Missouri ...we have the same engine ( 1995 525i ) and still strong at 180k

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  #4  
Old 09-20-2012, 08:25 PM
Photojunky Photojunky is offline
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I worked for a trucking company that almost never changed the oil in our trucks and pick up trucks and it didn't seem to make any difference. Heat is the enemy and making sure your cooling system is working properly is the most important thing. I don't believe in synthetic oil or the 3000 mile change unless you've over heated your vehicle or submerged it. I change the oil when it looks real dirty. I own 4 vehicles all with over 100K and never have had an engine issue.
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Old 09-20-2012, 08:40 PM
snowsled7 snowsled7 is offline
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Quote:
Originally Posted by Photojunky View Post
I change the oil when it looks real dirty.
Now that is some funny chit there
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  #6  
Old 09-20-2012, 10:07 PM
Josh429er Josh429er is offline
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I cringed reading that. 10w40 control edge with syntec is what I use. Most because It's good chit, and It's plentiful.
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  #7  
Old 09-21-2012, 01:33 AM
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Quote:
Originally Posted by Photojunky View Post
I worked for a trucking company that almost never changed the oil in our trucks and pick up trucks and it didn't seem to make any difference. Heat is the enemy and making sure your cooling system is working properly is the most important thing. I don't believe in synthetic oil or the 3000 mile change unless you've over heated your vehicle or submerged it. I change the oil when it looks real dirty. I own 4 vehicles all with over 100K and never have had an engine issue.
Are you seriously writing this on a car forum? Prepare your anus
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  #8  
Old 09-21-2012, 05:21 AM
Photojunky Photojunky is offline
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I'm ready. Seriously, I worked for a company that had over 20 vehicles. They rarely did oil changes, and now I work for a city agency that has 100's of vehicles that are also what most would be considered neglected, and we NEVER have engine issues due to infrequent oil changes. Like I said before, keeping your engine cool is the most important thing in regards to long engine life. Unless you are driving under such severe conditions you are actually breaking down your oil, the 3000 mile oil change is a waste of money. If it makes you feel better go ahead and do it, but don't forget your cooling system.
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  #9  
Old 09-21-2012, 05:31 AM
tdepetra tdepetra is offline
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Quote:
Originally Posted by Costa View Post
Are you seriously writing this on a car forum? Prepare your anus
I'll spring for the lube (non-synthetic)!
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  #10  
Old 09-21-2012, 07:06 AM
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jfs356 jfs356 is offline
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Not to beat a dead horse on this issue, but I have been told by engineers who know the issue that you are wasting good oil if you change at 3K. One of my friends has the lab results to back it up.
Most car manufacturer's will say the same thing, assuming car is used in normal daily driving. We do it mostly as a sense of false security and it is fairly cheap.
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  #11  
Old 09-21-2012, 05:21 PM
green95 green95 is offline
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thanks for all the help. just to let u know i live in alberta which is mostly cold all year except for some super hot days in the summer. and my car has roughly 245000km on it
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  #12  
Old 09-21-2012, 06:38 PM
snowsled7 snowsled7 is offline
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I run Mobil 1 0w-40 european blend. It is BMW approved and on the shelf at wal mart for about 6.50/qt.

You can get a whole lot more milage from oil than most people think. 10-15k mile intervals are entirely safe on newer cars, though most manufacturers reccomend synthetics for long drain intervals. Oil analysis supports these longer intervals so I say go for it.

On my cars I use a 5,000 mile interval. By then the oil in my BMW is starting to smell of fuel a bit. I had a fuel dilution related engine failure once on an old carbureted hot rod of mine.

There is no way an engine that doesn't get decent service will last as long as one that has. Having 4 cars over 100k miles doesn't tell me much except you probably have a pay back coming. If you have been seriously only changing your oil when it looks dirty, then you have a lot to learn about engines.
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  #13  
Old 09-21-2012, 07:14 PM
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I have nothing much to add to what has already been beaten to death over the last ten years...except this:

If you can spring for synthetic oil, go for it. If you ever happen to do heavy maintenance on a high-mileage engine that's been run with synthetic for the majority of its life, the difference in the amount of coking and surface varnish is night and day...as in non-existent with the synthetic.

In addition to the 5'er I also maintain a Saturn Ion with an Ecotec that's got a 120K+ miles on it, and there isn't an drop of varnish anywhere inside the cartridge filter reservoir or up in the valve train. Virgin aluminum all the way around using the factory ~7500 mile change intervals.
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  #14  
Old 09-21-2012, 07:26 PM
Photojunky Photojunky is offline
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Quote:
Originally Posted by snowsled7 View Post
If you have been seriously only changing your oil when it looks dirty, then you have a lot to learn about engines.
Jeez, ok, maybe not dirty but when it is not clear and has at least over 5000 miles. Did I hit a nerve or what? Didn't think this forum would turn hostile. But like I said before, I worked for a trucking company that waited way too long to change the oil, and currently work for a city agency that does not change the oil very often in its vehicles, and we do dog these vehicles, so I am speaking from experience. We have never had an issue due to the engine oil not being changes often. Typically we have problems when people run our cars hot for what ever reason, low coolant, thermostat, fan clutch, or no oil. Have you been working for 27 years with vehicles under these type of conditions, or are you a self proclaimed expert?
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  #15  
Old 09-21-2012, 10:12 PM
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_Ethrty-Andy_ _Ethrty-Andy_ is offline
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Quote:
Originally Posted by Photojunky View Post
Jeez, ok, maybe not dirty but when it is not clear and has at least over 5000 miles. Did I hit a nerve or what? Didn't think this forum would turn hostile. But like I said before, I worked for a trucking company that waited way too long to change the oil, and currently work for a city agency that does not change the oil very often in its vehicles, and we do dog these vehicles, so I am speaking from experience. We have never had an issue due to the engine oil not being changes often. Typically we have problems when people run our cars hot for what ever reason, low coolant, thermostat, fan clutch, or no oil. Have you been working for 27 years with vehicles under these type of conditions, or are you a self proclaimed expert?
All those cars and trucks are written off over 5 years, so they dont care what happens after then. futhermore, they are usually sold well before high milage for thier respective vehicles for that reason.

Your 100% basing your so called experience on a vehicle held for a short period of time, that is expenced over 5 years, not its real 20year + life. you have no idea what you are talking about
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  #16  
Old 09-22-2012, 12:38 AM
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BMWFatherFigure BMWFatherFigure is offline
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+1 Ethirty Andy. Jap import engines to Australia are much the same. I change oil in all my cars at half way down the service indicator and then again when fully due. Then I reset the SI.
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  #17  
Old 09-22-2012, 05:43 AM
snowsled7 snowsled7 is offline
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Quote:
Originally Posted by Photojunky View Post
Have you been working for 27 years with vehicles under these type of conditions, or are you a self proclaimed expert?
Happy to have a measuring contest with you. In fact I have been involved with fleets of vehicles for over 20 years. In addition, I personally owned and managed the maintenance for a small army of class 8 trucks, trailers, pick-up trucks, forklifts, skid loaders, tractors as well as a personal fleet that honestly numbers well over 50 vehicles spanning nearly 30 years of driving, racing and teaching driving skills.

I figure I am qualified to speak

So the government agency you work for neglects its vehicles? Big surprise. That is why they buy new vehciles all the time. When was the last time they kept something running for 20 years?
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Last edited by snowsled7; 09-22-2012 at 05:50 AM.
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  #18  
Old 09-22-2012, 06:42 AM
Photojunky Photojunky is offline
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Quote:
Originally Posted by _Ethrty-Andy_ View Post
All those cars and trucks are written off over 5 years, so they dont care what happens after then. futhermore, they are usually sold well before high milage for thier respective vehicles for that reason.

Your 100% basing your so called experience on a vehicle held for a short period of time, that is expenced over 5 years, not its real 20year + life. you have no idea what you are talking about
Seriously? You are telling me what my agency does? For one thing, the city I work in is so cheap part of our fleet are hand me downs from other agencies. Many of our vehicles do have high mileage, 200K + and are well over 5 years. We had one hand me down, a Chevy van with almost 300k city miles that was so loud it would set off car alarms till they finally got around to changing the muffler. I don't know why you are so set on proving me wrong, but the fact is, keeping your engine cool is number one, not the 3 or 5 thousand mile oil change. As a matter of fact, I have never heard anyone seizing an engine cause of drty oil, low oil or no oil yes.
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  #19  
Old 09-22-2012, 05:00 PM
Byork7 Byork7 is offline
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Quote:
Originally Posted by Photojunky View Post
Seriously? You are telling me what my agency does? For one thing, the city I work in is so cheap part of our fleet are hand me downs from other agencies. Many of our vehicles do have high mileage, 200K + and are well over 5 years. We had one hand me down, a Chevy van with almost 300k city miles that was so loud it would set off car alarms till they finally got around to changing the muffler. I don't know why you are so set on proving me wrong, but the fact is, keeping your engine cool is number one, not the 3 or 5 thousand mile oil change. As a matter of fact, I have never heard anyone seizing an engine cause of drty oil, low oil or no oil yes.
Youre trying to convince people ON A CAR FORUM that changing your oil doesnt matter. Thats like trying to convince potheads that weed should never be legalized. It wont happen, and your attempts are futile. Just stop.
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  #20  
Old 09-22-2012, 07:07 PM
Photojunky Photojunky is offline
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Originally Posted by Byork7 View Post
Youre trying to convince people ON A CAR FORUM that changing your oil doesnt matter. Thats like trying to convince potheads that weed should never be legalized. It wont happen, and your attempts are futile. Just stop.
i don't know how I can be more clear. The frequent 3 -5 K oil change is a waste of time. The most important thing you can do is to ensure your car runs cool and does not overheat. Changing your oil does matter, but people do it too frequently just for peace of mind and that's a waste of money. Btw, I changed my oil today after 6k. Show me a post where I said it doesn't matter cause till you do, you're making yourself look pretty arrogant. Anyway, if you don't believe me you can search the web and find page after page of information that backs what I say.
http://en.wikipedia.org/wiki/3,000_mile_myth It's hard to find information on the web to the contrary, and I've been dealing with fleets of cars for the last 27 years so I'm pretty confident I'm right.
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  #21  
Old 09-23-2012, 05:49 AM
snowsled7 snowsled7 is offline
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The original post made no mention of the oil change interval. I then went through and re-read... nobody else was arguing with you over the change interval, not a single post advocating a 3000 mile oil change interval.

I'm not sure who you are arguing with

You are all over the place dude. You just changed your own oil at 6000 miles, yet 3-5k is a waste?

We own old BMW's, you are preaching to the choir regarding cooling systems and overheating.

The question was, "what synthetic do you use?". It didn't have anything to do with you working for the city watching our tax dollars go to waste, or your questionable car maintenace habits.

Thanks for the entertainment though
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BMW's from my past...
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'95 740iL '84 318i/5

Last edited by snowsled7; 09-23-2012 at 05:54 AM.
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  #22  
Old 09-23-2012, 06:31 AM
Photojunky Photojunky is offline
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Quote:
Originally Posted by snowsled7 View Post
The original post made no mention of the oil change interval. I then went through and re-read... nobody else was arguing with you over the change interval, not a single post advocating a 3000 mile oil change interval.

I'm not sure who you are arguing with

You are all over the place dude. You just changed your own oil at 6000 miles, yet 3-5k is a waste?

We own old BMW's, you are preaching to the choir regarding cooling systems and overheating.

The question was, "what synthetic do you use?". It didn't have anything to do with you working for the city watching our tax dollars go to waste, or your questionable car maintenace habits.

Thanks for the entertainment though
No problem, entertainment and information is what the web is all about.
OP, if they are not sure what to use or what was used, I would go with a blend.
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  #23  
Old 09-23-2012, 10:00 AM
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BMWFatherFigure BMWFatherFigure is offline
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Missed oils changes cost - I work on (not own) an E36 that missed a few and now needs a full set of lifters. My E30 missed a few thanks to PO's and now has mains growl at 350k km. I'll keep changing my oil when I see fit and check with Castrol Help when I'm stuck..
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  #24  
Old 09-23-2012, 10:10 AM
paperplane94 paperplane94 is offline
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when you don't change your oil often enough:


I like to think its like brushing your teeth. It matters more how often you do it than what brand of toothpaste you use.

Last edited by paperplane94; 09-23-2012 at 10:12 AM.
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  #25  
Old 09-23-2012, 01:25 PM
tdepetra tdepetra is offline
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Originally Posted by paperplane94 View Post
when you don't change your oil often enough:


I like to think its like brushing your teeth. It matters more how often you do it than what brand of toothpaste you use.
A picture truly is worth 1,000 words!
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