Thoughts on partial oil changes?
05-31-2007, 08:10 AM
#31
Three Wheelin'
Join Date: Dec 2004
Location: Halifax, Nova Scotia , Canada
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Jason,
Most German makes have the multifunction oil sensor . The primary purpose is to extend oil change periods and so reduce company car running costs.
The down side is the cost of the very special oils that must be used .
A lot of private owners have abandoned the system and gone back to conventioal oil and regular changes !
I think that the VAG + Audi + etc group is the largest group to take on this oil system a few years ago.
When I came across this oil system it looked like a PIA !
Geoff
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KS400200 , the oldest 964 on Rennlist , unless you know differently !
Most German makes have the multifunction oil sensor . The primary purpose is to extend oil change periods and so reduce company car running costs.
The down side is the cost of the very special oils that must be used .
A lot of private owners have abandoned the system and gone back to conventioal oil and regular changes !
I think that the VAG + Audi + etc group is the largest group to take on this oil system a few years ago.
When I came across this oil system it looked like a PIA !
Geoff
--------------------------------------------------------------------------------
KS400200 , the oldest 964 on Rennlist , unless you know differently !
05-31-2007, 11:23 AM
#32
Race Director
Originally Posted by Dick in TN
Our family car is a '97 BMW 540i that we bought with 30K miles, now has 130K.
Transmission fluid never changed, as it is lifetime fill, and operates perfectly.
Engine oil changed per the service light, which is 12 to 15K, with Mobil1.
Have never needed to add oil between oil changes.
Transmission fluid never changed, as it is lifetime fill, and operates perfectly.
Engine oil changed per the service light, which is 12 to 15K, with Mobil1.
Have never needed to add oil between oil changes.
ZF, the mfgr. of the BMW trannys doesn't call any of their fluids "lifetime", that's only done by the auto mfgr.
05-31-2007, 11:39 AM
#33
Addicted Specialist
Rennlist Member
Rennlist Member
Originally Posted by 993BillW
I have no doubt that many BMW trannys last 130k plus but have to believe they would last/function better if the fluid was changed every 50 - 60k mi. Will BMW warranty that transmission past 50K? It's very easy to call something "lifetime" if you're only going to warranty it for 50K.
ZF, the mfgr. of the BMW trannys doesn't call any of their fluids "lifetime", that's only done by the auto mfgr.
ZF, the mfgr. of the BMW trannys doesn't call any of their fluids "lifetime", that's only done by the auto mfgr.
Edward
05-31-2007, 11:52 AM
#34
Addict
Rennlist Member
Rennlist Member
Do the Synthetic Oils have lower hydroscopic properties than Dino Oils?
Whenever I lay my boat up, I change the oil because someone long ago put a bug in my ear about moisture absorbed in the oil pitting engine surfaces. I have carried this notion over to the care and feeding of my Porsche. I always change her oil prior to the winter layup.
I wonder if I am wasting time and money with the new synthetics.
Whenever I lay my boat up, I change the oil because someone long ago put a bug in my ear about moisture absorbed in the oil pitting engine surfaces. I have carried this notion over to the care and feeding of my Porsche. I always change her oil prior to the winter layup.
I wonder if I am wasting time and money with the new synthetics.
05-31-2007, 12:33 PM
#35
Drifting
Originally Posted by 993BillW
And so you're saying that by not changing the filters every time on a car that gets 3,000 mi. between changes that we're shortening the lifetime of our engines? Do you have proof of that?
Maybe it's just that I'm not hung up on replacing something that doesn't need replacing, it has nothing to do w/ the cost of filters.
Maybe it's just that I'm not hung up on replacing something that doesn't need replacing, it has nothing to do w/ the cost of filters.
I personally don't give a damn if you ever change your oil or filters as failure to do so on your part will have no bearing on me in any way.
Have a nice day.....ZP44
06-01-2007, 12:43 AM
#36
Racer
Will BMW warranty that transmission past 50K? It's very easy to call something "lifetime" if you're only going to warranty it for 50K
They will and did. Car was a certified pre-owned, and warrented for 100K.
They will and did. Car was a certified pre-owned, and warrented for 100K.
