[Biturbos4] Re: Switching from dino to synth - lifter prob?
brett at cloud9.net
Fri Jan 16 12:43:22 EST 2004
At 5:53 PM -0800 1/15/04, Single Malt wrote:
>I decided to take my 01 S4 to an indy before my factory warranty expires (1k
>left!) to check things out ...
>As they were dumping oil from my boost tubes, I asked if they could tell if it
>was dino or synth oil (since I had just switched to synth a thousand miles
Nearly impossible; especially used they look pretty much the same,
smell about the same...if you handed me two cups, one with dino and
one with synth, I could probably tell you which was which on
smell...but certainly not used.
> Both the service advisor and the mechanic said to switch back to dino
>immediately. They were quite clear that I *would* have lifter problems (their
>words: "every time").
Sounds to me like they have a good profit margin on dino, but a lousy
one on synth. Well...or their customers come back at 5k instead of
3k for changes...or they might get fewer oil-related problems on
synth cars...take your pick.
>Does any one have any information about this??
Considering synthetic now comes from the factory in many cars- I
don't really believe it. Some people's brains(mostly dealers/service
people) just can't handle the fact that synthetic IS better in almost
every regard. As long as you pick the proper grade, you'll be fine.
The owner's manual covers appropriate oil grades rather nicely.
I've been running my 200q20v on synthetic for, oh, probably 5-6 years
now? Only recently have I noticed lifter noise(and it comes+goes at
random). The noise probably has to do more with 185,000-ish miles,
and less with the oil itself. In general lifters seem to last about
this long before they start tapping occasionally; I think the 5000
started tapping earlier(and it certainly was much worse), but was run
on dino oil for most of its life until I got my hands on it.
"They that give up essential liberty to obtain temporary
safety deserve neither liberty nor safety." - Ben Franklin
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