Oil claims can reach 'near
Oil claims can reach 'near hysteria'..
You mean "oils AIN'T oils Sol??
Remember or become aware that we are just advertisers' products being machinated. It's not new....fifty eight years ago the advertising agency handling new washing liquid products told me why women (unconsciously) preferred creamy white liquid which came out in spurts as they squeezed the bottle. These places are not innocent scientists interested in our welfare, but in getting inside our heads. There are ups and downs with oils and all are expected to meet minimum standards. Any 'bonus' to that requires scientific proof to be 'real'.
Fundamentally ...synthetic oil was developed by IG Farben, part of a massive group of companies which included Standard Oil .IG Farbem invented mustard gas used in WW1 and Zyklon 'B' used alleged to have been used against their religious people in WW11. Obviously a market grew up around the product. It is more molecularly 'even' than mineral oil and can contain chemicals claimed to improve engine life. It is pretty consistent over engine temperature and an easier start in truly cold weather than the thickening mineral oil when vehicles are stationary in low ambient temperatures.
Synthetic oil maintains 'thin-ness' and is more a 'leaker' than mineral oil. Like washing one's hands thoroughly, distancing and turning off the TV when Trump starts talking, these cues are meant to maintain health. Oil (and filter) changes at say 10,000 kms is pretty normal for synthetics/ The less pure mineral oil may be changed at say 8000 kMs however both could run 20,000 if clean and motor not flogged. The abused or 'well used' Subaru will be running 'stressed' and maybe collecting more metal in the sump filter and elsewhere that one driven with the typical 'legal' speed changes.
I thought I was pretty ok with oils and changes and so forth but the mechanic replacing my Pajero engine is using 'run in oil where long ago we used to simply use a thinner oil and to run the engine on water only as cooling for 1000kms...why?...some coolant products interact with the head gaskets.
I sometimes yearn for my fast old 1938 Buick 8 ! and my well worked 46 model....simplicity and reliability and longevity...none of this humbug of modern stuff...however it is what it is.
For my SAAB 2.3 Carlsson I use semi synthetic and having read the dissertations and comments here I'll look more closely into oils for my wrx...which is still interstate after getting rid of those ghastly chinese coil-overs so commonly used.
Every higher performance car I have owned has been bilstein/bilstein-eibach'd and suspension tuned by the best there is in Australia however I will not change the engine settings.
In this case I decided to experiment, fitting 'bugeye' STI suspension and strut brace (lovely pink bits which the japanese changed owing to 'gender inference' ) so I can later assess it against Bilsteins. For me, a believer these days in keeping cars 'factory' for longevity safety and resale value I don't think what I have done is heresy or hypocrisy. Voila. .