Best 2 litre oil 30wt, multi, syn ? |
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Best 2 litre oil 30wt, multi, syn ? |
rush |
May 20 2015, 01:52 PM
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#1
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Newbie Group: Members Posts: 25 Joined: 15-May 15 From: orcas island, wa Member No.: 18,731 Region Association: None |
I have always used 30 weight in air motors. Couple of 912 friends use syn multi...any thoughts
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Jake Raby |
May 20 2015, 09:55 PM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
I used to love Royal Purple... No longer, once it became readily available it tanked.
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eyesright |
May 21 2015, 09:16 AM
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#3
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Member Group: Members Posts: 430 Joined: 8-January 12 From: OK Member No.: 13,979 Region Association: Southwest Region |
I used to love Royal Purple... No longer, once it became readily available it tanked. Dang It! I have used RP for years in a Miata, my wife's Pontiac, and my (250k miles) MR-2. My pals at the FLAPS talked me into it and finally after two years I switched the MR-2....and got a 10% mileage increase, highway and city. I'm too much armchair engineer and I check it at every fill....So then I changed the Pontiac and got about a 7-8% increase. And then a 10+% increase in the Miata. (Sold the Miata some time ago.) So that sold me at the time. The Royal Purple HP has added zinc so I used it in my 914 at first, but at 1qt/1200 miles I decided it was expensive. So I changed the 914 to QS Long Life (or what ever its called) with the higher zinc. But then at this last change I went back to RP HP....fickle? When my '86 911 was serviced at the not too distant independant Porsche shop they used Motul 20/50. We consumers don't have much of a clue and trust that for DD cars we'll do all right over all. And wannabe engineers like me admire the OCD engineers like Jake and others who push things to as many digits as they can. |
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