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Oil change interval


hpfmnst

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  • Bronze Donating Members
  • Member For: 8y 5m 10d
13 hours ago, Head said:

Oils don't clean they lubricate. The days of using detergent oils are long gone. A clean oil means less contamination, in my case high speed ks per day, therefore any moisture is evaporated off meaning no sludge build up. My average speed is sitting on 74kph.

I reckon you must own a mechanical service business or sell oil to make that recommendation!

I'll even go one step further and make a bold statement "oils never loose their lubricating properties they just get contaminated". Hence why you can centrifuge old oil and reuse it.

 

Full syth oil are made of highly refined, but nevertheless conventional carrier oil. The remaining percentage is still based on "conventional" oil, though it has been chemically separated and "synthesized" into PAOs and other synthetic lubricants. ALL MULTI WEIGHT SYNTH OILS ARE DETERGENT BASED OILS! The detergents are what clean the soot and particles from the engine, getting stuck in the oil and thus turning the oil black.

 

only oils that are not detergent bases are single weight oils like 2 stroke oil or sae 20w and the likes.

Edited by MBAF
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  • MattyP
  • Cruise Control
  • Member For: 12y 8m 21d
  • Gender: Male
  • Location: Central Coast

15000kms is probably all right if you use a good full syn oil and only do long highway trips.

 

personally I change it 7500kms just cause

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  • Member For: 9y 8m 15d

O man, now Im confused even more!!
I might just stick with 7.5K service just to be on the safe side.
I dont drive my car often. I do about 7-8K per year, which is not much.
I guess it's not that bad to do service once a year in my case..

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  • Member
  • Member For: 8y 8m 6d
  • Gender: Not Telling
  • Location: Radioactive wasteland

1st change when I bought it to make sure. 2nd was for fresh oil on that cruise plus new oil feed line. Then I changed that out after the cruise cause it got a flogging. 

Pedantic much? 

 

Lemon on fresh is good. Lime fresh with baking sofa for that extra clean is better. 

 

The less you drive it doesn't necessarily mean less changes. 

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