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Originally Posted by Theo@BluePower
Its something we would use in a high end service for our customers as it seems to help make the power..
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I run Royal Purple 10/40 in my XR8. Good stuff. I was goin to run 5/30 or 0/40 but after speaking to the guys at royal purple was told that 10/40 is my safest bet with a 260 as 0/40 is to light for start up on them and 5/30 may be a little light at optemp for daily driving.
Cheers
Glenn