hvyman;1243637 said:
after a rebuild you want to switch to synthetic any time after around 2500miles. your at 8k so your fine.
Actually anytime after 1000-1500 miles is plenty.
Chaz;1243675 said:
5w30 seems a little thin, then again, I'm in the south. I am running the royal purple. It turns black really fast. That could mean its doing its job cleaning the engine or it could mean it can't handle the heat. I ran across a thread in another forum where a guy was dogging Royal Purple as it left some hefty crusties inside the turbo when he had it rebuilt, or at least more than the norm. He may just be blaming oil when he should be blaming himself for not letting his turbo cool down before shutting the engine off.
I would be curious to know if anyone else is running 5w30. Maybe I'm wrong
Yep, you're wrong
Read the Motor oil 101 link in my sig...that will open your eyes as to why you want to run an oil with the lowest 1st number you can find. And, don't be thinking a 0W-30 is "thin", the German Castrol the guys above are talking about is getting close to a 40W viscosity wise at engine ops temp (100 deg C).
The color of the oil has absolutely nothing to do with how well it is doing it's job. Another of the many oil myths.
rocketguy13;1243828 said:
dont go royal purple, it is great oil for race engines that get rebuilt all the time but not for daily drivers. if you research it you will find that it is lacking a key ingredient... antil rust agents. it alows your internal parts that can rust to develop surface rust and eventally start pitting. i found this out when me and a friend were researching about oils used in LS motors in trans ams and camaros.
I would not use the RP XPR line in a street driven car, but RP's standard line is a good oil. It is a Grp IV PAO...hard to beat that base stock. It's additive pack is slanted more toward the race crowd (especially those running flat tappet domestic engines), but it is turning in some great wear numbers from analysis. I wouldn't hesitiate to use it.
BTW - since when does oil need anti-rust agents :slap:
I'm thinking your "research" was based on "my buddy told me" vs the facts.