1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

synthetic oil

Discussion in 'Engine & Transmission' started by francispj, Dec 29, 2014.

  1. francispj

    francispj Member

    Messages:
    175
    Location:
    Adelaide
    Hi All , I realised I hadn't changed the oil for a quite a long time so I drained ot and put 5/50 synthetic nulon in. I heard you should use 20/50.mineral. Will this light oil cause issues?
     
  2. syncro

    syncro Well-Known Member

    Messages:
    10,217
    Location:
    Southern Highlands
    Synthetic oil does not have the heat transfer qualities of mineral oil. If you have an oil temperature gauge it will show a lower running temperature because the oil is not soaking the heat away from the engine which will cause the engine to actually run hotter.
     
  3. oldman

    oldman Super Moderator Staff Member

    Messages:
    10,462
    Location:
    Avalon Beach NSW
    ^ x2 ….and you should be changing it every 5,000 kms. religiously.
    Regular, scheduled maintenance prevents long term issues.
     
  4. syncro

    syncro Well-Known Member

    Messages:
    10,217
    Location:
    Southern Highlands
    With a type 1 engine I would agree, but with later engines with oil filters I would use the factory recomendations within reason if you use good German quality filters.
     
  5. StevieVW

    StevieVW Well-Known Member

    Messages:
    3,474
    Location:
    Somerset, Tasmania
    Mmm type 1 mesh screen gooodness....
     
  6. syncro

    syncro Well-Known Member

    Messages:
    10,217
    Location:
    Southern Highlands
    Designed to filter out small children and animals.
     
  7. cbus

    cbus Well-Known Member

    Messages:
    13,434
    Location:
    sunshine coast
  8. Winged

    Winged Active Member

    Messages:
    213
    Location:
    Huon Valley
    I've been using Ace 30 the oil that says its for air cooled ( extra zinc I think) engines. Worth the dough?
     
  9. cbus

    cbus Well-Known Member

    Messages:
    13,434
    Location:
    sunshine coast
    certainly a safe choice and a few guys who know their stuff reccommend it.
     
  10. StevieVW

    StevieVW Well-Known Member

    Messages:
    3,474
    Location:
    Somerset, Tasmania

    I use it also. Just run out. Any tassie distributors? Buying direct freight is 65 bux, bit dear for 20l!
     
  11. StevieVW

    StevieVW Well-Known Member

    Messages:
    3,474
    Location:
    Somerset, Tasmania

    I would have said large maurauding bison..... Or there is the smaller, finer mesh for small tame bison....
     
  12. Winged

    Winged Active Member

    Messages:
    213
    Location:
    Huon Valley
    Hey Steve, $65 for 20 lts seems cheap or is that for freight only. I was paying $35 - 40 for 5 lts in vic. Is that direct from the distributor?
     
  13. cbus

    cbus Well-Known Member

    Messages:
    13,434
    Location:
    sunshine coast
    good price. same price as any quality mineral oil that I would use.
     
  14. francispj

    francispj Member

    Messages:
    175
    Location:
    Adelaide
    i've noticed a lower temp reading on the gauge(as mentioned) but also the engine running a lot quieter and smoother. As a precaution, I added some Slick 50 engine treatment which I put in all my cars . The engine is in good nick - not fumey
    I checked and adjusted the accellerator cable and can't believe how much better it goes- must have stretched or something and I wasn,t getting full power:
     
  15. Mordred

    Mordred Super Moderator Staff Member

    Messages:
    2,993
    Location:
    Penna, Hobart
    I would be interested to know if there are any Ace 30 distributors in Tas as well.

    Adrian
     
  16. cbus

    cbus Well-Known Member

    Messages:
    13,434
    Location:
    sunshine coast
    With the caveat that im not a mechanical engineer-

    The biggest issue i would have with the nulon oil you are running is that theres no mention of zinc which is needed for the cam etc.
    Any potential issue would certainly not be immediate as your cam has been work hardened by now and probably had zinc previously.
    For my own circumstance I would not rely on this long term.

    From repeated personal experience , I have noted that;
    an oil change alone [ same weight/brand] will sometimes give better running
    That a lighter oil DEFINATELY allows a higher idle and cooler oil temp. [25/70 to 20/50]and also a change of 'same weight' different brand. [10C difference with weight change,HWY]
    That nulon E20 will allow the same oil fill to bleed out of worn hydraulic lifters faster.

    Nulon oils appear to be 'lightweight' for their respective ratings.


    so I would expect a lighter oil to give less resistance and higher idle.
    within reason, a lighter oil will flow better and cool an 'oil cooled' engine better.
    that an additive such as slick 50 may allow for less resistance in the flow of an oil.

    my preferences for my motors are ;
    i would prefer the 'winter' number to be at least 10 or 15. [QLD]
    zinc between 0.12 and 0.16 %
    good balance of detergent /type so that its not agressive against the zinc properties.
    light enough to maintain good cooling and start up lubrication

    I would also aim for an idle pressure close to7- 9psi and HWY 40-45psi

    any corrections from Les or other mechanics welcome :)
     
  17. StevieVW

    StevieVW Well-Known Member

    Messages:
    3,474
    Location:
    Somerset, Tasmania
    I was quoted 90 bux for 20L PLUS 65 bux for freight to tas.
     
  18. Winged

    Winged Active Member

    Messages:
    213
    Location:
    Huon Valley
    Not a bad price really. Is it QP lubes Maddingley Vic?
    Sorry for the Hijack francispj but thinking things are resolved.
     
  19. 1500king

    1500king Well-Known Member

    Messages:
    1,617
    Location:
    Adelaide, SA
    I run Mobil 1 20W-50..Full ZDDP, formulated for aircooled engines with flat tappet cams! No issues with cooling...don't even have a temp gauge.
     
  20. rowansnow

    rowansnow Member

    Messages:
    70
    Location:
    Australia
    Hi,

    I like to run Australian Made so I use Penrite Oil.
    This was my Kombi Guru's recommendation.
    It's not cheap oil, its expensive but I believe it's high quality.

    In my rebuilt WBX 2.1 - I run HPR 15-60 Fully Synthetic Engine oil
    http://www.penriteoil.com.au/products.php?id_categ=1&id_base_oil=2&id_products=3

    Penrite recommend the thicker Mineral Oil for our older WBX engines which is HPR 50 -
    That's what I used to use in my air cooled Kombi.
    My Kombi Guru seems to think that the WBX can take a Fully Synthetic HPR15 as mentioned above.
    http://www.penriteoil.com.au/products.php?id_categ=1&id_subcateg=0&id_products=590

    Seems to work fine, anyone else used this brand or care to comment?

    Rowan
     

Share This Page