1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Blackstone vs. PdMA (now R&G) for engine UOA

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by 2009Prius, Jun 17, 2009.

  1. 2009Prius

    2009Prius A Wimpy DIYer

    Joined:
    Mar 25, 2009
    2,705
    510
    63
    Location:
    USA
    Vehicle:
    2009 Prius
    Trying to decide between two oil testers for engine oil (not transaxel).

    With similar cost, there is slight difference in the testing results I can get: Blackstone has antifreeze and fuel, while R&G gives viscosity at two temperatures. Some people seem to think R&G more accurate.

    Any suggestion welcome. Thanks! :)
     
    #1 2009Prius, Jun 17, 2009
  2. bwilson4web

    bwilson4web BMW i3 and Model 3

    Joined:
    Nov 25, 2005
    27,397
    15,518
    0
    Location:
    Huntsville AL
    Vehicle:
    2018 Tesla Model 3
    Model:
    Prime Plus
    With engine oil, I don't think it makes a lot of difference because that oil soon reaches operating temperature and stays there. The transaxle oil is different because it takes longer to reach operating temperature. It spends more time at the lower temperature ranges so having both low and high viscosity readings are important to tell if it has worn out.

    Now if I were in Canada or truly cold areas, I would want both low and high viscosity readings but this assumes those terribly low, Alaskan or Canadian temperatures.

    Bob Wilson
     
    #2 bwilson4web, Jun 17, 2009
    1 person likes this.
  3. FL_Prius_Driver

    FL_Prius_Driver Senior Member

    Joined:
    Jun 17, 2007
    4,319
    1,527
    0
    Location:
    Tampa Bay
    Vehicle:
    2010 Prius
    Model:
    I
    For the engine, detecting antifreeze or fuel contamination flags a serious engine problem before you see any other signs possibly saving many $$$$$$. That has to be two of the most valuable test results you can get in an analysis of an engine.
     
    #3 FL_Prius_Driver, Jun 17, 2009
    1 person likes this.
(You must log in or sign up to post here.)