The current thread on the use of "synthetic oil" all started because of a request for information about oil with a teflon additive. PLEASE understand that "synthetic oils" do NOT have teflon additives - - UNLESS THEY SAY SO. Synthetic oils - YES. Teflon additives - NO. Dick Ryan --- "therealdmcvegas <DMCVegas@xxxx>" <DMCVegas@xxxx> wrote: > --- In dmcnews@xxxxxxxxxxxxxxx, Senatorpack@xxxx > wrote: > > > > Is Mobil one synthetic better than conventional > oils? > > > > My BMW's (and other European Cars) have a decal > attached under the > hood "requesting" the use of Mobil One synthetic. > > > > The BMW dealers use zero 0w/30 oil. > > > > Michael Pack > > From many pages online both by Synthetic oil > manufacturers, and 3rd parties, > all agree that Synthetic oils do indeed have > benefits over conventional motor > oils. Specificly, the benefit is increased > resistance to wear within various > categorites, which in turn leads to longer engine > life & $ savings. Now as a > disclaimer, I'm no ASE certified mechanic, these are > just paraphrases of > simular claims by both regular people, and synthetic > manufacturers that I've > found on the internet (and of course if it's on the > internet it must be true, right? > :p), as well as other sources. So if somthing is > wrong here, please correct me. > > 1.First of course is that synthetics have longer > intervals between oil changes. > This is the biggest factor of all that offsets the > higher price ( the biggest turn off > for DeLoreans due to how much we use!), if not make > them cheaper > according to some. > > 2. Syntheics don't nessisary lubricate "better" per > se as they can lubricate > quicker because of a better flow when either hot or > cold. And of course the > next reason... > > 3. Synthetics are even more resistant to breakdown > and oxydation due to > extreme temperatures and harsher environments. > > 4. And of course there are the other things such as > resistance to > contaiminates, less wear on components, and improved > fuel economy due to > less resistance. > > The only disadvantage I've seen is the "older seals > can develop a leak issue". > Synthetic doesn't damage oil seals, but since it > flows easier/has smaller > molecules, it can flow thru smaller cracks in seals > where conventional oil > would not have. As far as this goes, I've seen an > even split between people > who've actually switched to synthetic (vs. those who > "know" someone who > has) that this will or will not occur. I'm assuming > there are other variables > though that have contributed to this, so I'm still > not 100% convinced that leaks > will or will not occur. > > Now if you have a vehicle that specificly requests > the exclusive use of > synthetic oils, then you do definatly need to stick > with them. Newer engines > that require specific types/grades of motor oils do > so because they are > engineered specificly for them. Anything other than > these stated can reduce > econmy, and increase wear, aside from even voiding > the vehicle's warranty in > some cases. As was explained to me, some newer > motors can have smaller > ports where the oil passes thru than previous, and > the wrong oil will not be > able to flow thru as fast causing less lubrication. > > Now as to which type of synthetic motor oil to use, > who knows. Apparently > some petrolium companies are changing the definition > of "synthetic oil", so > I've no clue. However, I can tell you this. When you > buy synthetic oil, watch out > for that "Multi-blend" stuff. It's just regular oil > with a little synthetic blended in to > up the price a bit. That it itself defeats the > purpose of using synthetics. > > -Robert > vin 6585 "X" > > > > To address comments privately to the moderating > team, please address: > moderators@xxxx > > To search the archives or view files, log in at > http://groups.yahoo.com/group/dmcnews > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com