Mixing regular oil with synthetic

uracus

Forum Newbie
Joined
Jun 9, 2018
Threads
1
Messages
1
Have Kohler 7000 series 23 hp. Want to change break-in oil (not filter), replace with synthetic (Quaker 10-30 wt). Will have residual oil left in filter which I assume is petroleum based oil. Will residual oil mix with synthetic?
 

ILENGINE

Lawn Pro
Joined
May 6, 2010
Threads
39
Messages
9,865
Yes, Some synthetic oils are actually dino oil with a synthetic additive package. Actually changing the filter may be more important than the oil since all the breakin grit is in the filter, the oil is not hurt.
 

7394

Lawn Addict
Joined
Sep 5, 2014
Threads
84
Messages
4,608
I agree with Bert- Change that Oil Filter. Cause it is full of "Dirty Break-In Oil" in it anyhow. This is the most important oil change, don't cheap out.
 

bertsmobile1

Lawn Royalty
Joined
Nov 29, 2014
Threads
64
Messages
24,647
actually you agree with Ilengine.
I did post a reply that does not seem to show up, but that happens sometimes.
 

7394

Lawn Addict
Joined
Sep 5, 2014
Threads
84
Messages
4,608
I agree with ILENGINE - Change that Oil Filter. Cause it is full of "Dirty Break-In Oil" in it anyhow. This is the most important oil change, don't cheap out.


Correction made as my reading glasses were dirty. Thanks to all.
 
Top