I've been running full synthetic in my BMC 1275 A-series engine for 2500
miles and about 3 months with no increased leaks. I will post my oil usage
(burn and leak) data as it becomes available.
YMMV,
Jeff
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On 8/12/99, cfchrist wrote:
>the saab group just thoroughly kicked this one silly. as i understand
>it(uh-oh here we go) petroleum products tend to swell seals a bit.
>synthetic products do not. when going with a new engine,trans or rear you
>have a definite choice to use what ever the popular lubricant is at the time
>with little to no adverse reactions. but as soon as you decide to change
>to the more modern lubricant in a used assembly it leaks like no one would
>believe. the saab guys were thrashing using synthetic oil in their
>transaxles. the biggest comment was excessive leakage(in used known good
>assemblies with out renewing the seals). be carefull, when in a vehicles
>life you choose to attempt a change. the coeficiant of drag might be
>grately reduced but the amount lost due to leakage will certainly result in
>fewer rust spots on the bottom of your car. not to mention the added
>expense of the synthetic product over time too. modern fluids do have their
>place in todays market it is up to the consumer to be educated enough to
>know what will work in wich aplication, and it's consiquences. it is the
>life blood of your LBC! be carefull what you feed it. chuck.
>
>hunting for clue musk.he-he-he!
Jeffrey H. Boatright, PhD
Senior Editor, Molecular Vision
http://www.molvis.org/molvis
"Seeing the Future in a Very Tiny Way"
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