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5.0 and 5.7 Discussion, Amsoil... in Cadillac Engine Discussion; This will be getting fixed soon. I want to make this my daily driver again and keep the clock down ...
  1. #61
    codewize's Avatar
    codewize is offline Cadillac Owners Master
    Automobile(s): 91 Brougham d'Elegance / 95 Fleetwood Broug/ 01 DTS / 11 CTS Lux
    Join Date
    Apr 2005
    Upstate NY

    Re: Amsoil...

    This will be getting fixed soon. I want to make this my daily driver again and keep the clock down on the DTS. She needs that and some front end work. Ball joints, inner tie-rod, strut rod bushing (deteriorated from the oil leak) then she'll be good as new again.

    Quote Originally Posted by N0DIH View Post
    Is there a Cadillac 4.x that doesn't leak oil on the intake? Every one that I have seen does....

    91 Brougham d'Elegance 350
    95 Fleetwood Brougham
    01 Custom Deville DTS
    2011 CTS4 Luxury

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  2. #62
    C66 Racing's Avatar
    C66 Racing is offline Cadillac Owners Enthusiast
    Automobile(s): 06 CTS-V (sold)
    Join Date
    Oct 2006
    King George, VA

    Re: Amsoil...

    Quote Originally Posted by N0DIH View Post
    My curiosity is how does a 4 ball wear test relate to an engine?
    While linear comparisons between engine life and 4 ball wear test results are probably unrealistic, I do think there is validity to the test, especially in parts of the engine such as the bearings under heavy load. I lost an LS6 in my Z06 (before switching to AMSOIL) during my first racing season in 2003 so I am personally a little sensitive to how an oil holds up under heavy load. Probably a better comparision is the High Temp High Shear rating. But if you compare factory released specs of the HTHS, AMSOIL's are the highest I've found short of full racing oils which don't have any detergents.

    I also think the 4 ball results are supported by the numerous used oil analysis reports I've seen which shows less actual wear metals in an engine using AMSOIL. Whether this improved wear translates to longer engine life is obviously subject to considerable debate. But, I'll take the peace of mind that my engines are wearing less than the next guys...

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