What the best synthetic oil

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02-13-2003, 05:06 AM

#61

Patman

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Re: What the best synthetic oil

<blockquote>quote:<hr />Originally posted by LS1derfull:
 Patman, i spoke with one of my best friends last week about Royal Purple. He is a professional engine builder named Joe Sherman(PHR contest winner) He told me about a 406" SBC he built for a guy out in Cali. that made 785 hp on Joes dyno, they drained conventional 10w30 and added 0w30 RP, it immediately made consistent 800 hp! 15 hp with only a oil change on the dyno! That is awesome to me, i wouldnt have believed it if this info was coming from almost anyone else but its true! Price on that oil seems much more reasonable to me now! LOL <hr /></blockquote>Are you sure it was 0w30? According to Royal Purple's website they don't make that viscosity.

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02-13-2003, 05:41 AM

#62

LS1derfull

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Re: What the best synthetic oil

Sorry Patman it may have been 0w20, my bad.,

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02-13-2003, 07:33 AM

#63

Patman

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Re: What the best synthetic oil

<blockquote>quote:<hr />Originally posted by LS1derfull:
 Sorry Patman it may have been 0w20, my bad., <hr /></blockquote>The problem with that is that it might make more power with that thin oil but I bet it will wear out that engine much sooner. A brand new Honda might work well with 0w20 but a larger clearance race engine like that would most likely do best with Royal Purple racing 41 or their 10w40.

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02-20-2003, 05:42 PM

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do0dfromcali

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Re: What the best synthetic oil

<blockquote>quote:<hr />Originally posted by rob-ss:
 I hear Schaeffer Supreme is very good. Does anyone use this? <hr /></blockquote>I use schaeffer. I watched first hand as it out performed mobil 1. If it out performs mobil one...then it is good for me.

The thing i noticed that was good about it is during cold start-ups. Before I had this oil...the engine felt kind of rough on start up after sitting all night. But with this oil in it, the engine was real smooth on start-up. Plus it gave better gas mileage.

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02-20-2003, 10:28 PM

#65

91Formula

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Re: What the best synthetic oil

Royal Puprle all the way!!!!

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02-21-2003, 04:52 PM

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2001bird

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Re: What the best synthetic oil

synthetic is not supposed to be used in clutch type lsd's, well at atleast EATONS! I use AMSOIL! <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> shipped to my door for a good price, it cured my oil consumption problem and has a 25,000/15,000 or 7,500 mile oil change interval depending on which type you use.

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02-21-2003, 05:03 PM

#67

sconnor

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Re: What the best synthetic oil

<blockquote>quote:<hr />Originally posted by 2001bird:
 synthetic is not supposed to be used in clutch type lsd's, well at atleast EATONS! I use AMSOIL! <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> shipped to my door for a good price, it cured my oil consumption problem and has a 25,000/15,000 or 7,500 mile oil change interval depending on which type you use. <hr /></blockquote>What weight oil are you using that it cured the oil consumption?????Scott

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02-21-2003, 07:05 PM

#68

Patman

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Re: What the best synthetic oil

<blockquote>quote:<hr />Originally posted by do0dfromcali:
 <blockquote>quote:<hr />Originally posted by rob-ss:
 I hear Schaeffer Supreme is very good. Does anyone use this? <hr /></blockquote>I use schaeffer. I watched first hand as it out performed mobil 1. If it out performs mobil one...then it is good for me.

The thing i noticed that was good about it is during cold start-ups. Before I had this oil...the engine felt kind of rough on start up after sitting all night. But with this oil in it, the engine was real smooth on start-up. Plus it gave better gas mileage. <hr /></blockquote>That smoothness is from the moly they use. They use about 170ppm, compared to Mobil 1 that uses about 80-90.

Even in -9F weather with my car parked outside all night, it started up fine with 10w30 Schaeffer blend. I still wish I put in 5w30 this winter though, I never expected it to be this cold so much, so I figured the 10w30 was a safe bet. I probably would've seen lower engine wear numbers on analysis with the 5w30 this winter. Next year I'll run something more winter suitable (possibly that 0w30 German made Castrol, since it's pour point is -78F!!)

And yes, Schaeffer oil does show lower engine wear numbers in oil analysis results compared to Mobil 1.

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02-22-2003, 12:17 AM

#69

Cal

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Re: What the best synthetic oil

<blockquote>quote:<hr />Originally posted by OneQuickSS:
 Ive been using Royal Purple in the car since Ive had it! Its good stuff and I highly recommend it! I even use it in the differencial! Well hope that helps! <hr /></blockquote>You don't want synthetic oil in the differential if you have a posi!

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