old audi / synthetic oil question...

[jim rose]

howdy, all...

searching the archives on this was like searching the word "audi", so i'm 
asking...

i have heard mixed reviews of what one would assume to be a very simple 
thing: oil.

I have an 88 5k turbo quat that i just bought with 216k on it. my mechanic, 
a very talented audi specialist, reccomended that i run dino oil or maybe a 
blend, he claimed higher useage wihh synth oil in high mileage cars.

The list thinks otherwise...

The problem is that a few have told me about the possibility of synthetic 
oil causing seal leaks in older cars, that have probably not had synthetic 
for the majority of their lifespan. A good freind had this happen to his 88 
M3 when he got it in 95 (90k) and wound up replacing oil pan and main seals.

I really want to run synth, but dont want to ruin the seals on the car. If i 
find it leaks, are the seals permanently damaged? or can you switch back to 
dino and call it a day. Are there other circumstances that could have led to 
this leaking? I have heard that synthetics had had a rep for this leaking, 
but htat it's been cleared up...

Sorrry for beating the dead horse, but i figure better to be cautious than 
broke.

thanks much,
jim
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