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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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#1 (permalink) Old 01-07-2005, 03:15 AM
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Hi guys...great forum!

After long long time looking around i finally got my hands on a low mileage manual 535i (89). The 318 i have had before, understandably, simply cannot compare...

A simple question i have today tho: What motor oil do i use? The previous owner "wasn't sure" which he used and i've heard you cant use normal oil if previously synthetic oils were in use.


thanks guys
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#2 (permalink) Old 01-07-2005, 07:17 AM
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Welcome

I was using mobil synthectic in my car and i switched back to dino oil.

You can go back from a synth oil, you just have to make sure that you drain the old oil very well.


as for the type used, it's up to you. I use castrol 10w40 on my sportsbike, so i tried castrol 10w30 in my car now. so far so good.
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#3 (permalink) Old 01-07-2005, 09:06 AM
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Take comfort in the fact that you own the best looking BMW.

...in my humble, humble opinion.
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#4 (permalink) Old 01-07-2005, 10:12 AM
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welcome.

i use 10w30 penzoil.

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#5 (permalink) Old 01-07-2005, 06:42 PM
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thanks guys
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#6 (permalink) Old 01-18-2005, 11:51 PM
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i know the question has already been answered, but i have to tell on myself. i felt like such a dweeb.....

i go to auto zone the other day (changing my oil for the first time in my 90 525i)

never before owning a car that drinks synth, i asked the guy behind the counter if he though what i had choosen was appropriate for our climate and my car. the dude looks up "oil" on his computer... asks my yr, make, model... he comes up with 20w 50 meeting the "sf or sg" standard.

this concerned me because the only letters i was familiar with were "sae." He says "sae = society of auto engineers" and sf/sg must be a different standard that bmw oil must meet! -now i'm really scared ($$$).

we look all over the store for auto oil meeting sf/sg standards to no avail. All the synth oil was rated "SL." Finally we come across a bottle with sf/sg written on the back, and its 4stroke motor cycle oil. happy but hessitant i ask if he's got a case. the search began again. in the back room, at the top of a 12' shelf, was one case of 20w50 valvoline 4stroke atv/motorcycle oil . the old guy's ladder couldn't reach the oil. unwilling to give up, i built a set of stairs with cases of oil to reach the MY case at the very top.

i bought the damn thing only to come home and google SL SF and SG oil. after 10min i knew two things:

1) i'd never get back that 45min in autozone talking to this geezer who completely wasted my time.

2) that SL is the standard that replaced sf and sg because its better!

Any sae approved synth oil with a SL on the back is ok to use. mobil 1 has a good reputation.
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#7 (permalink) Old 01-19-2005, 06:16 PM
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Mobil 1 Synthetic is BMWs oil of choice and BMW encourages you to use it.

If your car hasn't been on synthetic oil since day one, switching to it may cause some nasty leaks.

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#8 (permalink) Old 01-26-2005, 10:10 PM
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Quote:
Originally posted by Torque@Jan 19 2005, 06:16 PM
Mobil 1 Synthetic is BMWs oil of choice and BMW encourages you to use it.

If your car hasn't been on synthetic oil since day one, switching to it may cause some nasty leaks.
[snapback]275136[/snapback]
well thanks, you jinxed me! i now have an oil leak... any sugestions on tracking it down? its not the drain plug or oil filter, but it does seem to be near the filter or on the front at about the same hieght. arrg

btw i think there was synthetic in the car before i changed it.

1990 525i
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#9 (permalink) Old 01-27-2005, 04:35 PM
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did you replace the filter at the same time you replaced the oil? If so, did you replace ALL of the o-rings (I think they're three of them)? If not, this may be the cause of the leak.

I've switched my two bmw's to synthetic w/no leaks nor problems. (Using mobil1 20w-50)

<span style='color:green'>1994 325i </span>- - - 75,000 mi.
No mods - - - very happy as is!
<span style='color:green'>1995 525i </span>- - - 154,000 mi.
No squeaks or rattles... unreal!
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#10 (permalink) Old 01-27-2005, 07:00 PM
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Quote:
Originally posted by frank3@Jan 27 2005, 04:35 PM
did you replace the filter at the same time you replaced the oil? If so, did you replace ALL of the o-rings (I think they're three of them)? If not, this may be the cause of the leak.

I've switched my two bmw's to synthetic w/no leaks nor problems. (Using mobil1 20w-50)
[snapback]280537[/snapback]
? yes i changed the filter, but o rings? only ring i know about came on the new filter. where are these rings?

thanks
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#11 (permalink) Old 01-27-2005, 07:05 PM
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The following came from pelicanparts.com...their site has a lot of good information on simple BMW repairs. The writeup is for an e36, but is also similarly applicable to many 5-series oil filter setups.

"For the E36 cars, you should clean out the inside of the oil filter housing before installing the new oil filter cartridge. In your oil filter kit, you should also have two o-rings and a replacement copper gasket for the long bolt that attaches the top of the housing (early E36 cars). Replace the o-ring at the bottom of the long bolt (Figure 11), and also replace the large o-ring underneath the canister top (Figure 12). Insert the new filter into the housing (Figure 13), and reinstall the long bolt and the canister top. Tighten the top of the canister to 25 Nm (18 ft-lb)."

<span style='color:green'>1994 325i </span>- - - 75,000 mi.
No mods - - - very happy as is!
<span style='color:green'>1995 525i </span>- - - 154,000 mi.
No squeaks or rattles... unreal!
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#12 (permalink) Old 01-28-2005, 10:32 AM
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Quote:
Originally posted by frank3@Jan 27 2005, 09:05 PM
The following came from pelicanparts.com...their site has a lot of good information on simple BMW repairs. The writeup is for an e36, but is also similarly applicable to many 5-series oil filter setups.

"For the E36 cars, you should clean out the inside of the oil filter housing before installing the new oil filter cartridge. In your oil filter kit, you should also have two o-rings and a replacement copper gasket for the long bolt that attaches the top of the housing (early E36 cars). Replace the o-ring at the bottom of the long bolt (Figure 11), and also replace the large o-ring underneath the canister top (Figure 12). Insert the new filter into the housing (Figure 13), and reinstall the long bolt and the canister top. Tighten the top of the canister to 25 Nm (18 ft-lb)."
[snapback]280648[/snapback]
His car is a 1990 with a m20b25. It has the traditional type filter that you just screw on from the bottom of the engine. No housing, no rings.

Quit giving him false information.

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#13 (permalink) Old 01-28-2005, 11:13 AM
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Quote:
Originally posted by frank3@Jan 27 2005, 07:05 PM
The following came from pelicanparts.com...their site has a lot of good information on simple BMW repairs. The writeup is for an e36, but is also similarly applicable to many 5-series oil filter setups.

"For the E36 cars, you should clean out the inside of the oil filter housing before installing the new oil filter cartridge. In your oil filter kit, you should also have two o-rings and a replacement copper gasket for the long bolt that attaches the top of the housing (early E36 cars). Replace the o-ring at the bottom of the long bolt (Figure 11), and also replace the large o-ring underneath the canister top (Figure 12). Insert the new filter into the housing (Figure 13), and reinstall the long bolt and the canister top. Tighten the top of the canister to 25 Nm (18 ft-lb)."
[snapback]280648[/snapback]
oh.... i see why you have three o rings.

you have a cartridge filter. mine is a regular old spin on filter. shoot, i was hoping it was that simple.
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#14 (permalink) Old 01-28-2005, 11:58 AM
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thx for the info torque.

if i go to nonsynth do you thing my problems will be solved,

or am i gonna have to take upart my car? ghead
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#15 (permalink) Old 01-28-2005, 02:11 PM
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Quote:
Originally posted by hpacc@Jan 28 2005, 01:58 PM
thx for the info torque.

if i go to nonsynth do you thing my problems will be solved,

or am i gonna have to take upart my car? ghead
[snapback]281072[/snapback]
I don't think it's gonna fix itself now... you can try, but in reallity I don't think it will work.

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