Trinity Automotive

651.242.2886 (AUTO)

 Why should I continue to change my oil every 3,000 miles, even when using synthetic?

This is the fundamental question that is asked to us on a weekly and almost daily basis, as we only offer a synthetic oil change.  There are several factors that tie in to our recommendation that your vehicle oil should be changed every 3 months or 3,000 miles, whichever comes first.  Regular oil changes are the single most important maintenance that your vehicle requires.  Nothing will shorten your engine life faster than missing oil changes/cycling dirty oil through your engine.
the road. ​

1. Not all oil filters are created equal. 

Standard oil filters have a paper filament (are made of paper/cardboard) and can only hold so much/filter out so much dirt before you cycle dirty oil back through your engine.  This in turn will cause premature engine failure as cycling dirty oil can clog oil passages, can have adverse effects on variable valve solenoids and timing chain tensioners, can cause hydraulic systems failure, and stiffen piston rings. 

Most modern engines have much tighter tolerances that their older counterparts, which is why modern oil is much thinner than the old “standard” of 10W-30.

Paper filaments are inferior to synthetic fiber filaments. 

We use paper oil filters for our standard oil changes that meet or exceed OEM specifications.  While we are able to get a synthetic fiber filters for most makes/models, however they are not available for all vehicles.

2. Driving Conditions.  

Minnesota is considered to be “extreme driving conditions” with the severe cold, stop-and-go traffic, frequent cold starts, towing, short trips (less than 4 miles), humidity, and heat of the summer.  All of these factors cause engine oil to prematurely degrade.  The temperature swings can also cause condensation build up within the oil system.   Poor driving conditions cause the oil to lose its viscosity (the ability to flow freely throughout the engine, as well as lubricating all moving and hydraulic parts appropriately).

3. Inspections every 3,000 miles. 

Trinity Automotive inspects your vehicle at every oil change to help monitor your vehicles health.  We identify problems, potential problems, and maintenance items that are due or will be due soon.  We keep you informed about the overall health of your vehicle, about what needs to be done, and what can wait.  This is the vehicle equivalent of having your physical done.