Whats the harm in going from Mineral to Synthetic

Discussion in 'Volvo Forum' started by biofumes, Sep 17, 2019.

  1. biofumes

    biofumes Light Load Member

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    As a general rule of thumb, for years, I've been told to stick with what you've been using, but I never really asked anyone why out of respect for those with years of experience.

    A new to us 2013 D13 with 222K miles, was told has mineral 15w-40 weight oil. What are the myths or facts about going from mineral to synthetic? What sparked our interest, was the new 15w-40 T6(fully synthetic) and VDS 4.5 approved.

    https://rotella.shell.com/en_us/pro...5ba16a94dded7f4aea73/shell-rotella-15w-40.pdf
     
  2. Ridgeline

    Ridgeline Road Train Member

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    Nothing.

    First do an oil analysis then change it and extend out the oil change, please don't waste oil by doing a 3 or 10k oil change with synthetic.
     
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  3. buddyd157

    buddyd157 Road Train Member

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    should be no harm at all. even if you go full synthetic and say you need to add some, you can still use regular oil if that's all you can find at the time you need it. so it goes without saying, carry an extra gallon.

    the oil changes would be longer than before, try to stay at the change interval THAT company recommends.

    also, check the owners manual for thier recommendations, or even the dealership, as things change from the time you first got that truck till now.

    usually too, no additives are needed for "extra protection"

    your engine will experience better starting and quicker lubrication in colder weather, as the main bearings basically sit almost dry (very little oil there) when the engine is off. it's when we go to start our engines,,,,,ALL engines, 4 wheeler or big rig, that the most wear takes place until that oil circulates.

    also, that oil dripping down back to the oil pan will carry away the heat quicker (not that you'd notice).

    many more benefits to synthetics or synthetic blends over conventional motor oils.

    BUT...at a higher cost.
     
    Last edited: Sep 17, 2019
    Reason for edit: spelling
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  4. truckdriver31

    truckdriver31 Road Train Member

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    here at wm they go 50k on a syn oil change
     
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  5. biofumes

    biofumes Light Load Member

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    Good info and history to backup this oil brand and weight.
     
  6. DUNE-T

    DUNE-T Road Train Member

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    Old seals can start leaking oil
     
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  7. x1Heavy

    x1Heavy Road Train Member

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    I used to run Detriots 25 to 30K before changes. Synthetic was not a problem.

    It does not matter much anymore this oil or that oil provided you run it. The only time I had trouble with fluids was in the older cars I used to own. Some of the modern oils did not do well in there at top end. I recall one employer who used tractor oil in his transmission, it ran with a attitude but it ran.
     
  8. truckdriver31

    truckdriver31 Road Train Member

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  9. truckdriver31

    truckdriver31 Road Train Member

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    bring new 1987 359 glider 0 miles
     
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