Type of Motor Oils Suitable for E34

[Silas82]

Just got a 89' E34 525i thanks to a good buddy of mine. Been doing some reading online about best suited Motor Oils for our E34's. There are a lot of people stating that we should avoid using Synthetic Oils as it will lead to leaky seals.

The previous owner of my car never used synthetic oil before so i guess its ok till now. Can anybody verify the truth about using Synthetic oils in our e34? If really Synthetic Oil isnt a issue, would like to switch to Synthetic oils.

Plus can everybody also share what type of Oils that you use? Thanks Heaps!

 

[slyder]

It's an argumentative subject. But normally rule of thumb for old engines if haven't been overhauled before better to use semi. As fully might be too thin. Due to age

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[anakin]

If you drive normally, and religiously change oil every 5000km, any mineral oil will do..doesn't have to be fully syn/ syn..

 

[moots]

If you drive normally, and religiously change oil every 5000km, any mineral oil will do..doesn't have to be fully syn/ syn..

agree....

alternatively use castrol magnatec 10w40...semi syn and you can extend the change schedule to every 7000kms

 

[Silas82]

What if I dont really drive the car that much since I only visit semenanjung once a month and do not reach 5000kms in 3 mths. Do I also still have to service it every 3 mths?
Since there is always rule of thumb either milleage or 3 mths?

 

[koryong]

6 months is fine though your mech would be happier with every 3 months ... ;-)

 

[anakin]

6 months is fine though your mech would be happier with every 3 months ... ;-)

Ha..ha..ha...good one koryong!

 

[Silas82]

Wow.. thanks so much guys!

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[Silas82]

Ha..ha..ha...good one koryong!

yrah I bet they would

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[ICEMAN 68]

been running on total mineral and so far so good ....

 

[Silas82]

been running on total mineral and so far so good ....

I guess i will stick to Mineral then.... Thanks guys!