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Engine Oil

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Hello,

Anybody using Castrol full synthetic EDGE, Oil change interval to 15,000 miles

Presently i am using Castrol Syn.Blend and changing every 5,000 miles, Should i switch?

Thanks in advance.

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I just changed to pennzoil ultra, which I plan to run for about 10,000 miles.

I went to the Mobil 1 15000 synthetic and did some trials in both lexus ES & SC. I ran the oil for 10000 in the ES and changed it and it looked GREAT. I then put 12000 on the SC and it looked GREAT. I am doing 15000 now on both and expect the same results.

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I use Amsoil 12mo/ 25,000 and it works great. I usually am closer to 16k after 12mo. Good luck!

In your car...good luck on that..Unless you post a UOA.

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<_< rumor is if your car is use to using dino stick to it cuz actualy most the slug build up is kinda good if you have like over 100 K on it. some of the slug from what i understand stops up those seals that may leak... with the syn.. it cleans out the slug which expose the seals that could leak..now this is just rumor i feel if you just settle down with high mileage oil and use oil treatment you car still be happy i use castrol high milage :cheers:

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