Oil use

Discuss mechanical problems here.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
Ingles49
Minor Friendly
Posts: 12
Joined: Thu Aug 17, 2023 7:09 pm
Location: UK
MMOC Member: Yes

Oil use

Post by Ingles49 »

I have a 950 Saloon in good condition that I use almost every day. However, on a recent long trip I noticed that it used far more oil when fast cruising (ie 50 mph) than slow journeys (<40 mph). Anybody know why?
ManyMinors
Minor Legend
Posts: 2960
Joined: Tue Nov 11, 2014 9:41 am
MMOC Member: No

Re: Oil use

Post by ManyMinors »

Haha. I love the idea that 50mph is "fast cruising" :) I'd call that "getting in the way of the traffic". I think that fast cruising is faster than 65 mph in mine :wink: A engine working harder will use a bit more oil. The oil gets hotter and thinner for a start. What do you mean by a lot of oil? The last time we took our Minor abroad, we covered about 1400 miles in a week and used just over a pint of oil which I thought was exceptionally good but I have had other Minors which used a pint every 150 - 200 miles. I have never worried TOO much about oil consumption unless I've also had a lot of unpleasant blue smoke. I think oil consumption varied quite a bit from car to car even when they quite new.
oliver90owner
Minor Legend
Posts: 1810
Joined: Thu May 12, 2016 6:33 am
MMOC Member: No

Re: Oil use

Post by oliver90owner »

Crankcase pressure - losing oil through the scroll crank seal? Check for oil from the weep hole in the bell housing.

You don’t actually provide any comparison consumption figures - that might help.
Ingles49
Minor Friendly
Posts: 12
Joined: Thu Aug 17, 2023 7:09 pm
Location: UK
MMOC Member: Yes

Re: Oil use

Post by Ingles49 »

oliver90owner wrote: Mon Jul 08, 2024 3:32 pm Crankcase pressure - losing oil through the scroll crank seal? Check for oil from the weep hole in the bell housing.

You don’t actually provide any comparison consumption figures - that might help.
About 150 miles / pint at more than 50 mph, about 500 miles/pint at 40 mph
Post Reply