low milage OCI

[Moon]

Why is it recommended to change your oil after 3 months reguardless of miles driiven?

When it takes 5 or 6 months to put 3000 miles on a vehicle, do you change at the recommended 3 month interval anyway? I had not been doing this and wonder what damage I might have done.

Does synthetic extend the recommended time between intervals?

Thanks,
Moon

 

[GRUMPA]

Good question moon, I'm a very low miles driver and it takes me over a year to put on 2k miles. Thats when I change the oil in mine.

 

[gsxr1100]

regular oil oxidizes and acids form; thus dino oil can not hold up overtime.

 

[Moon]

Mike,
How long would you go for OCI for dino time wise? I'd be interested in your opinion since I know you've had your oils tested.

How about synthetic, would it be the same as dino as far as time between oil changes?

Thanks!!

Moon

 

[gsxr1100]

depends on what engine. If working correctly etc. A dino oil will deplate faster then a synthetic (grp 3 and over). The synthetic will hold up longer and better if the additive package and ZDDP are high. Now a group 3 is a weird one since most times it acts and holds up like a dino oil, not a synthetic.

Oh ,the 3000 mile deal is made up. You will NEVER find that in any manual. Most are 7,500 miles or 5,000 miles for severe.

I am doing extended drains in my lexus, once per year in my BX and every other engine I have.