Quote:
Originally Posted by SVT_4_me  100% synthetic oil offers much better protection than the synthetic blend. it also offers much longer drain interval... the amsoil i am using is guaranteed for 25k miles or 1 year. it will also offer better fuel economy and much better cold weather/cold start protection.
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I understand the 'advertised" benefits of synthetics and if you are after longer change intravels than it does last longer than Dino or Semi's
With that said my choice is not to run it. I build my own engines for my Hot Rod cars and have seen results of running synthetics in 8 cyl push rod motors. Typical is bearing wear due to owners being convinced 7500 oil change intravels are OK.
The 0-20 wt has way more to do with "better" milage than dino vs semi vs synthetic.
For "normal" driving and use conditions synthetics are OK but IMHO I just prefer going dino or in the case of my Escape using the semi factory fill spec.
YMMV...no flame intended :-)
