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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 09-25-2012, 04:32 PM
Wolfy Wolfy is offline
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Lightbulb Question regarding oil.

Hello all, its time to change the oil for my bmw its a 1988 BMW 325i convertible.

what it currently has in is mobil 1 5W-40 for both diesele and gas engines and trucks its fully synthetic. I was told to use it by my mechanic who only works on bmwd and german cars.

Here is more information as well I live in PA, so I need to know the correct vicosity to use for the winter amd anyother input would be welcomed.

Thank you ahead of time.
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  #2  
Old 09-25-2012, 05:53 PM
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downhiller downhiller is offline
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that one looks good to me.
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  #3  
Old 09-26-2012, 07:30 PM
E30949/909 E30949/909 is offline
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I use 20-50 on my inline 6. 15-40 is recommended from the dealer/owner manuel
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Old 09-26-2012, 07:31 PM
E30949/909 E30949/909 is offline
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Your welcome
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  #5  
Old 09-27-2012, 04:34 AM
Wolfy Wolfy is offline
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Could you explain that image?
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  #6  
Old 09-27-2012, 05:11 AM
markseven markseven is offline
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Quote:
Originally Posted by E30949/909 View Post
I use 20-50 on my inline 6. 15-40 is recommended from the dealer/owner manuel
20/50 is too thick for north east winters.
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  #7  
Old 09-27-2012, 04:50 PM
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downhiller downhiller is offline
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Quote:
Originally Posted by Wolfy View Post
Could you explain that image?
its an oil viscosity to temperature chart. what you do is you take your lowest average temps in your area and your highest average temps and thatll help you determine what oil you need.

example, i lived in colorado spring. winter times, temps never really got below 0degrees, but i would drive up to the ski resorts. summer time, we'd get 100 degree weather. so using 10w-40 during the winter, i was good to say -30 degrees so the engine wouldnt have to move a thick sludge when first started. i ran 20w-50 during the summer just so theres added protection (more cooling, less thermal breakdown).
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Old 09-27-2012, 07:05 PM
E30 hobby car E30 hobby car is offline
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my question is this;

does your oil pressure light come on when the engine is up to temp and you have high rpms?

I am in southern ontario canada, pretty mild winters. and I Was running 5w 30 and it ran way to thin. So much so that my oil pressure light came on. I was just letting the car sit but I did run it up to temp every month.

so, at first i thought my oil pump was bad. or, my oil was to thin once warm and didn't have enough pressure to keep my oil light from coming on.

(the wrench in the works: i changed my oil pressure witch)

So, I changed my oil to 15 w 40 and its all good. no more light.

you tell me
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  #9  
Old 09-28-2012, 12:00 PM
Wolfy Wolfy is offline
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Quote:
Originally Posted by downhiller View Post
its an oil viscosity to temperature chart. what you do is you take your lowest average temps in your area and your highest average temps and thatll help you determine what oil you need.

example, i lived in colorado spring. winter times, temps never really got below 0degrees, but i would drive up to the ski resorts. summer time, we'd get 100 degree weather. so using 10w-40 during the winter, i was good to say -30 degrees so the engine wouldnt have to move a thick sludge when first started. i ran 20w-50 during the summer just so theres added protection (more cooling, less thermal breakdown).
So what would you use for the winter and summer for PA weather?
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  #10  
Old 09-28-2012, 06:03 PM
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downhiller downhiller is offline
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what your running. this graph is based off dino oil, not synthetic. but if you really wanted to drop in weight, i would find a 5w-40.
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