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brown synthetic oil


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dr.donut
User

Nov 14, 2020, 7:23 AM

Post #1 of 2 (2739 views)
brown synthetic oil Sign In

Couldn't reply to old thread . What do you do when the oil gets dark but still has a few 1,000 miles left before recommended change ?


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 14, 2020, 9:20 AM

Post #2 of 2 (2730 views)
Re: brown synthetic oil Sign In

What are you using for oil + filter intervals? Synthetic or not it's my suggestion to calculate TIME AND MILES since last done.
Doc: You come up with an assortment of vehicles so if used and was a little neglected the ''detergent" of any good oil (I only use synthetic) is supposed to clean the engine parts so seems it is.


Just do it if you keep it long enough you'll see a decline in how fast it discolors.


Do keep in mind oil if some magic oil is getting contaminated by if nothing else some fuel (not much in newer engines) raw at cold starts AND water this time of year and Spring cold metal and warmer if humid air condenses water in air above oil too really can't get out well. Example if you need wipers from dew that's everywhere even inside engine.


Your call on intervals I'll still suggest 3 months or 3,000 miles adjust that for garaged cars and how easy it gets driven and throw in lots of steady miles all at once without cold starts. IMO the owner's manuals about all state "normal use" or "severe" use. Not many are the schedule of normal if you read their list.


DIY if you don't mess up oil changing is cheap insurance of the best life for the engine's wear the detergents correct the dirt already there really shouldn't be much if cared for a lot from new. Color isn't the determination in used cars/trucks the rest is,


Tom



(This post was edited by Tom Greenleaf on Nov 14, 2020, 9:22 AM)






 
 
 






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