Changing Oil

[Barndog8341]

I was wondering what is better: changing your oil by time (ex. every 3 months) or by mileage (ex. every 3000 miles).

 

Also, for those who run synthetic oil, what do you change your oil at?

[NWI_#73]

Use the display %age

[txab]

Synthetic. 4.5k - 5k. As stated use your oil life monitor guage, if you have one

 

Perhaps this will help you as well:

 

http://www.google.com/search?num=30&hl...q=&gs_rfai=

[dillon]

im perty old school so i go by the 3K miles, or if 3months happens first then ill swap it out then. Also oil color and smell will tell you allot. When i didnt run a speedometer or odometer in my old pick-up i just went by oil color/smell. When it got dark i swapped or when it smelled "burnt" or gassy i swapped it out.

But if you really want to know what the perfect frequency is take a few lube samples. Ask around to see who will sell you the bottle( around here it would be an HD truck shop, like Freightliner KW or Peterbuilt). Then you just fill that little guy up with oil as you drain it (not the first or last bit of oil that drains) you send it in to the address on the bottle and in a few weeks time they tell you more about your oil than you wanted to know (this also works for transmissions, diffs and cooling systems). From that your able to tell if your loosing head gaskets, timing sets, bearings or running the oil too long or not long enough. Last time i ran one i just swiped a sample bottle from my dad (hes a diesel tech and keeps em around) but i think they are around $20.

[OH1]

im perty old school so i go by the 3K miles, or if 3months happens first then ill swap it out then. Also oil color and smell will tell you allot. When i didnt run a speedometer or odometer in my old pick-up i just went by oil color/smell. When it got dark i swapped or when it smelled "burnt" or gassy i swapped it out.

But if you really want to know what the perfect frequency is take a few lube samples. Ask around to see who will sell you the bottle( around here it would be an HD truck shop, like Freightliner KW or Peterbuilt). Then you just fill that little guy up with oil as you drain it (not the first or last bit of oil that drains) you send it in to the address on the bottle and in a few weeks time they tell you more about your oil than you wanted to know (this also works for transmissions, diffs and cooling systems). From that your able to tell if your loosing head gaskets, timing sets, bearings or running the oil too long or not long enough. Last time i ran one i just swiped a sample bottle from my dad (hes a diesel tech and keeps em around) but i think they are around $20.

 

 

Blackstone Labs...

 

http://www.blackstone-labs.com/

 

Awesome!