Guests - If You want access to member only forums on HSO. You will gain access only when you Sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
Midnight27

5W-30 vs. SAE 30

7 posts in this topic

Changing oil in the lawnmowers and snowblower. What is the difference in the two oils. I have some 5W-30 at home and want to make sure if I use it I will not be doing any damage to the small engines.

Share this post


Link to post
Share on other sites

If your engine is air cooled it is my understanding that you do not want to use a multi-grade oil like 10w-30. The engine runs hotter and multi-grades may not protect well enough. There might be some multi-grades that are rated for air cooled engines though so I may be wrong.

Share this post


Link to post
Share on other sites

You will burn more oil. My mower calls for 30w, after about 5 uses I add 8oz. If I add 30w I am good for about 5 more times. If i add 10w30 I have to add every mowing. 5w30 will probably be to light of a weight.

Share this post


Link to post
Share on other sites

With a lawnmower that is used constantly and in warmer weather I would stick to 30w but the snowblower is a different story. I used to run 30w in my snowblower and it was a bear to start (8hp B&S MANUAL START) and I switched to 5-30w and it is MUCH easier to start now. I am not that worried about oil consumption because a snowblower is a low use item unlike a lawnmower.

Share this post


Link to post
Share on other sites

In the winter flowing 0 degree air across your engine heads is far more efficient at keeping the engine cool and I imagine you won't have any trouble with multi-grade. Flowing 80 degree air across in mid summer might be a different story.

Share this post


Link to post
Share on other sites

I have a JD pushmower and the manual says it can use either 30w or 10w30. So far I have stuck with 30w, but in the fall when it gets cooler, I think I am going to switch to 10w30 this year. (It gets really stiff once the temps get below 50)

Share this post


Link to post
Share on other sites

i was always told that 5w-30 or 10w-30 have hydralic properties and 30 weight doesn't. so you cant run sae30 in a motor that calls for 10w-30 but you can run 10w-30 in a motor that calls for sae30. so if your motor has hydrualic lifters you must run a 10w-30 or 5w-30 sae 30 is not recommended

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0



  • Posts

    •   Hopefully the trend towards "the other white meat" will bring down the cost of beef brisket
    •   No, weekends was when the wife could get you outside to do some yard work!
    •   They are now making a cloth made out of trees and it seems like the plant is doing just fine. I have not noticed the "smell" since the conversion. Always made me wonder why the smell was the worst on weekends. Kinda thought that maybe the EPA did not work weekends 
    • We are heading back up to Isle Royale for the 4th holiday weekend ,,, Hope to have another video when we get back 
    •   My Father-in-law (a master plumber) always used to say you only need to know 3 things to be a plumber:          sh*t doesn't run uphill         payday is on Friday         the boss is an ahole      
    • I've been getting them at Costco,  I've checked slyvee and sams but never see them.  Although one of the butcher's at slyvee says he can get them which might not be a bad idea since you can have some fat cut off before you pay per #. I picked one up a couple of weeks ago and it was about 2.80 a #, which isn't too bad yet considering bacon in the store can run quite a bit more than that.  You making bacon or doing pork belly burnt ends moon lake?
    • Excellent summer fishing.  Charters catching strong numbers.  Jig/minnow or jig/leech and bouncers with spinners with crawlers or minnows still producing walleyes. When the wind is right for pulling spinners, they have been lights out.  Walleyes being caught in varying depths, 7-31' of water.  Some shallow shorelines still producing. Pike mixed in all over the lake.    Walleyes in the Rainy River with a better morning/evening bite.  Trolling cranks or pulling spinners a good idea to cover more water. Smallmouth bass are out and about along shorelines and feeder streams. Sturgeon fishing opens again Saturday, July 1st.     Up at the NW Angle, water temps are in the low to mid 60’s. Wind blown shorelines are giving up walleyes via leeches or crankbaits along the weed line. Crawlers on a  gold and/or orange spinner are producing fish out of the mud between 22 - 26 feet. On the Canadian side, bottom bouncers and spinners have been filling the livewells outside of monument bay between 24-28 feet.  Jigging near Skeet and Kennedy Islands have produced nice sized walleye and numerous perch. Great smallmouth action in Tranquil channel and the mouth of Johnston passage. Muskie fishing picking up with high 40” class fish being caught with a few 50's from shallow bottom bays or adjacent to them.
    • Busy time of year out there so if u get canceled it is hard to rebook especially with the smaller operations. Bummer though as it can be a lot of fun if they are biting. 
  • Our Sponsors