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What kind of oil you guys use?

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Old 01-28-08, 02:33 PM
  #51  
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Originally Posted by Smokey The Talon
Thanks for the replies Kent, I guess I was more curious as to the weight of the oil you used. You go for the full on "Le Mans" 20w-60?
No, 15W-50 in the summer, 10W-40 in the winter months.
Old 01-28-08, 09:57 PM
  #52  
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Originally Posted by dgeesaman
$10-11 per quart

They don't list the pricing for the 20w50, odd.
Old 01-28-08, 10:08 PM
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Originally Posted by dgeesaman
Have you used this?
Old 01-28-08, 10:18 PM
  #54  
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Originally Posted by GoodfellaFD3S
$10-11 per quart

They don't list the pricing for the 20w50, odd.
Plus shipping, and from what I gathered in that oil thread the shipping added around 20% to the cost!

For those who didn't read all 42 pages, it looks like Renewable's "HD" oils have the fuel dilution improvements developed for that guy's Audi direct-injection V8.
Old 01-28-08, 10:21 PM
  #55  
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Both from a Mobil site:

Will the use of Mobil 1 void my new-car warranty?

With the exception of the Mazda rotary engine (Mazda does not recommend any synthetic oils), Mobil 1 will not void new-car warranties. Mobil 1 exceeds the API and ILSAC engine-oil service requirements of all new-car manufacturers, both import and domestic. If in doubt, always check your vehicle owner’s manual or contact your vehicle’s manufacturer.
Question:
Using Mobil 1 in a Mazda Rotary Engine
I have a 2005 Mazda RX-8. This has a rotary engine, which injects oil into its intake path. Can I use Mobil 1 without risk of incomplete oil burn and or buildup?
-- Matt Hejnas, Central Valley, NY
Answer:
Mazda does not recommend the use of synthetic oils in its rotary engines. To help maintain your vehicle's warranty coverage, we suggest that you follow your car builder's engine oil recommendation.

Here the article that was in my sig:

http://www.ferrarichat.com/forum/faq...=haas_articles
Old 01-28-08, 10:30 PM
  #56  
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Originally Posted by rearviewmirror
Both from a Mobil site:






Here the article that was in my sig:

http://www.ferrarichat.com/forum/faq...=haas_articles
10w-60!! Damn
Old 01-28-08, 10:51 PM
  #57  
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The 'synthetic oil being detrimental to rotaries' thing is ridiculous.

Synthetic Idemitsu was formulated specifically for use in......you guessed it, rotaries.

I've torn down many many motors, and the ones run primarily on synthetic showed less wear.

Originally Posted by rearviewmirror
Both from a Mobil site:






Here the article that was in my sig:

http://www.ferrarichat.com/forum/faq...=haas_articles
Old 01-28-08, 11:10 PM
  #58  
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so after all , the Mobile 10w 30 synthetic oil will be the best oil for Rotaries? i thought the castrol GTX 20w 50 is the best oil for rotaries
Old 01-29-08, 05:07 AM
  #59  
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Originally Posted by kwerks
Have you used this?
No.

The discussion of fuel dilution though has me most interested.
Old 01-29-08, 07:36 PM
  #60  
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Originally Posted by KaiFD3S
20-50 here too and I am in Alaska...
isn't all the gas 85 octane up there?
Old 01-30-08, 11:29 AM
  #61  
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OMG another what type of oil thread. try K-Y.
Old 01-30-08, 02:54 PM
  #62  
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i use Royal Purple 10w40
Old 01-30-08, 05:45 PM
  #63  
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Great article. Now I know to use 0w-XX weight in synthetic, the only question is what is the second number we should be running? I'm assuming 30-40.
Old 01-30-08, 08:37 PM
  #64  
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Originally Posted by mikeric
Great article. Now I know to use 0w-XX weight in synthetic, the only question is what is the second number we should be running? I'm assuming 30-40.
Which ever one yields 50psi @ 3000rpm.

I used to use RP 10w30. I'm using 15w40 now. Once i get my heat exchangers in order i might drop back to 10w30 depending on how everything works out.
Old 01-30-08, 10:24 PM
  #65  
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so mobiel 10w30 vs castrol 20w 50. which one will be the one getting for our fd? which one better.
Old 01-31-08, 12:49 AM
  #66  
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Originally Posted by danny hahn
OMG another what type of oil thread. try K-Y.
There is a helpful response.
Old 01-31-08, 09:11 AM
  #67  
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Originally Posted by Carpenter
I have been using Valvoline 10w-30 for 9 years now. Not sure what I'm going to use, once I get the car back after the single turbo conversion.

Yeah i just bought castrol syntec blend 10W-30. Gonna put this in this weekend.

Then going with the idemitsu this summer.
Old 01-31-08, 09:23 AM
  #68  
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I use Racing oil, Valvoline 50 weight and a little bit of Lucas oil. Thats on the race car
Old 01-31-08, 10:05 AM
  #69  
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I currently use Mobil 1 10-30 but I'll be switching to Redline on my next oil change.
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