Synthetic Or Regular? - BMW Forum

SteveO325is · 03-14-2005, 08:23 PM

well I bought this car and I want to do an oil change on it... the previous owner has been running regular 10-40 on it, is it worth the extra money to go synthetic?

whitey_E30 · 03-14-2005, 08:41 PM

what year???

i have a 1987 325is and i run regular 20-50.
it runs great.
actually, i should change it pretty soon.

Kowalski · 03-14-2005, 09:29 PM

Quote:

Originally posted by whitey_E30@Mar 14 2005, 07:41 PM
what year???

i have a 1987 325is and i run regular 20-50.
it runs great.
actually, i should change it pretty soon.

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i run penzoil 10 40 year round, mild winters, not too hot summers altho some times it gets scorching but its good for this climate.

SteveO325is · 03-14-2005, 11:23 PM

Quote:

Originally posted by whitey_E30@Mar 14 2005, 09:41 PM
what year???

i have a 1987 325is and i run regular 20-50.
it runs great.
actually, i should change it pretty soon.

[snapback]311463[/snapback]

same car/year as you

guywithblack88e30 · 03-15-2005, 12:04 AM

ain't nothing better then redline fluids go with that if you can but yeah synthetic if ur gonna pamper ur car

CiscoKid · 03-15-2005, 09:26 AM

depens on how many miles your car has.... if it is over 100k, then dont do it, its gunna leak like a mother

SNOhprexd · 03-15-2005, 09:55 AM

i have run synthetic in all my cars and never had a problem with it, even at 300,000, just the more miles then the heavier weight you need to buy,
good luck

SteveO325is · 03-15-2005, 11:14 AM

Quote:

Originally posted by CiscoKid@Mar 15 2005, 10:26 AM
depens on how many miles your car has.... if it is over 100k, then dont do it, its gunna leak like a mother

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hmm, it has 111k - but I seriously doubt this milage is very close. The odometer is broke, the guy I bought it from said it was broke for a little less than a year.. whether or not he was lying I don't know

e30fanm3 · 03-15-2005, 04:01 PM

i would put what ever he had in it. you arent gonna benifit by spending the money to get synthetic

htp.bmw · 03-16-2005, 10:01 PM

why does your engine leak oil with synthetic after 100,000? is there that much of a difference in the oil?

'89 635 csi · 03-16-2005, 10:08 PM

I started putting Mobil 1 in my '86 5er at 120k and it has been fine!

CiscoKid · 03-17-2005, 09:30 AM

mine leaked when i switched at 109,. and i have to replace the valce cover gasket for about $50 for the part. There used to be a very small leak on the oil pan gasket, but now its gone