Oil in fuel
Thread Starter
Can Post Only in New Member Section
Joined: Nov 2010
Posts: 2
Likes: 0
From: Killucan Ireland
Oil in fuel
I have done a lot of engine work on 4 stroke's but I am interested in doing some on rotary's. While getting info from this forum, I have come across people using oil/fuel mix, instead of having an oil pump do the work. On 4 stroke's it is well known that oil in the fuel lowers the octane rating. How does this affect the rotary, and is it a good idea for powerful engines
John
John
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Search the term "premix" and have fun reading. 
This is probably the most discussed topic on this forum past "can I turbo my na?".
As for your concerns, it takes a load of oil to lower octane an appreciable amount. Rotary premix is generally around 100:1 or leaner, so you don't have to worry.
This is probably the most discussed topic on this forum past "can I turbo my na?".As for your concerns, it takes a load of oil to lower octane an appreciable amount. Rotary premix is generally around 100:1 or leaner, so you don't have to worry.
Joined: Sep 2005
Posts: 25,581
Likes: 136
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
N/A's ideal octane is about 83..so really the Regular blend of gas at an 85-87 octane is sufficient.
anything higher on an N/A is overkill and a waste of good fuel!
anything higher on an N/A is overkill and a waste of good fuel!
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
alphawolff
1st Generation Specific (1979-1985)
17
Nov 17, 2015 05:57 PM
