Quote:
Originally Posted by JessL
Re: Rotella,
Bobistheoilguy.com has recent virgin sample of 5-40 T6 synthetic Rotella posted with, as I recall, 1200 ppm of ZDDP.
I'm running this oil in my wife's 993 with excellent wear numbers according to Blackstone. This oil works much better in our situation, which is her 3 mile commute to work. Since the engine is in warm-up mode all the time, the thinner oil is better than the 15-50 Mobil1 I was running before.
I also run Rotella in my VW VR6 motor with excellent reports also.
YMMV.
Cheers,
Jess
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Yep..my 86 911 has been running Rotella T6 5w40 for years and no camshaft/rocker wear..valve adjustments are very minor and the cams look great.
Rotella T6 synthetic 5w40 is my first choice and a viscosity range/hydrocracked oil Porsche recommends.
Lots of very fast Porsche's on the autobahn going full throttle with 5w40 synthetic oils in the engines with no ill effects..it works just fine.
The Delo 400LS 15w40 might appeal to the Porsche crowd that likes to change their oil every 3000 miles and want an uber thick semi dino 40w oil with big zinc numbers and a strong additive package.