This might slow my oil burning
 

I didn’t know this existed. 60wt. Oil with high zinc.

Re: This might slow my oil burning
 

^^^ Old Harley Davidson guys often have some of that around.

Re: This might slow my oil burning
 

I am waiting for the oil that doesn't drip!

Re: This might slow my oil burning
 

How does 60W affect bearings?

Re: This might slow my oil burning
 

My thought too. That is not a multi-weight oil, so it will be the full 60 weight when cold. Before the engine warms and thins the oil, will 60-weight be able to get to everywhere its needed? I don't know. Maybe no problem. But maybe a dry bearing somewhere.

Re: This might slow my oil burning
 

Depends why your burning oil

Re: This might slow my oil burning
 

Yep,used the 60wt in my shovel head. Tom.

Re: This might slow my oil burning
 

Time to fix the problem!

Re: This might slow my oil burning
 

Worn rings I believe, 60 lbs compression on each cylinder, getting 40 miles of driving to the quart. I hope to swap in a Flathead motor I picked up a few years back this spring.

Re: This might slow my oil burning
 

ya, 40 miles eh? sounds like a good idea. ...people behind must be wondering if they're following the Queen Mary. ha :)

Re: This might slow my oil burning
 

Back in the early 70s I had a friend who drove an old rambler wagon. She would pull into the gas station and tell the attendant, "Fill it with oil and check the gas"... Personally. I have run a few loose engines on straight 40w with a couple cans of STP to quiet things down.

Re: This might slow my oil burning
 

I never did open up my 59L in my ‘38 to see how it was built. It had compression in the 60’s, never dripped oil, l used Mobil 1 10-50, never had to add oil, changed oil & filter every 500 miles. 3.78 diff, top speed on the Becada desert was 78 before an occasional missed beat. I wish I hadn’t sold it.

Re: This might slow my oil burning
 

I didn't realize there was a non dripper with that much wear. Geeesh

Re: This might slow my oil burning
 

Sawdust works well too :-(

Re: This might slow my oil burning
 

I don't think it was wear. it didn't burn oil, and a 59L is a low compression engine anyway.

Ya know, I think i ought to qualify that low compression further: I was ignorant of the need to warm up an engine before taking a compression reading, so it might have had better compression than I thought at the time.

Re: This might slow my oil burning
 

Also typically used when burning Nitro methane fuel. The amount of fuel flowing into the cylinders is so massive the engine oil gets contaminated. Heavy weight oil such as 60 wt is needed so the engine bearing's survive a 1/4 mile run.
Ronnieroadster

Re: This might slow my oil burning
 

Hadn’t thought of that. Would a dry sump work?

Re: This might slow my oil burning
 

Racing oil is engineered for a very short drop time not continued use. It is supposed to be run at the track one time and changed, not driven around for weeks and months. It does not have the proper additives to combat contamination and for long term stability. It has very low levels of detergents and dispersants and is designed to be used at high heat levels for short intervals. Now if you are racing your flatty, I stand corrected.

Re: This might slow my oil burning
 

My Dad worked in sales for Texaco starting in the 1940's. For a time, his company car was a Plymouth with the flathead six. That thing was a lemon from day one and it burned oil to the tune of a quart every 100 miles. A company warehouse guy suggested the use of SAE 60 weight oil that was referred to as Aircraft-60. That stopped the smoking and extended the range to one quart per 500 miles but it was hard to start on a cold day.

Re: This might slow my oil burning
 

Maybe the same idea with GM's recall on their 6.2 engines. The fix was going from 0-20w oil to 0-40w. The feds are taking a second look at that fix.

Re: This might slow my oil burning
 

Had a 60 comet years ago, guy behind me said he needed his wipers on

Re: This might slow my oil burning
 

My old 52 Ford got rerefined Cooks oil. $.25 a quart as I remember. 2-3 a week.

Re: This might slow my oil burning
 

10-30 non detergent and add zinc is what I do. I went to the store at 8am today and it was 6 below. Cranked a little slower but started, and I sat and kept it running till the chill was gone.

Re: This might slow my oil burning
 

Another major reason for very heavy weight oil in full-on alky and nitro motors is related to having huge bearing clearances. Where we might run .002 on a high-performance street engine (.001 per inch of journal diameter), the full-on top-fuel and alky motors will run twice that. With those large bearing clearances, you need a heavier film of oil to take up the larger gaps. Also, with dry-sump oil pumps, they're running over twice the oil pressure that we run on the street.

At Bonneville in our FlatCAD motor, we run about 120 PSI from the dry-sump pump and run 50 wt racing oil. Our bearing clearances are about .0025 on the rods and .003 to .004 on the mains. The rear main is always looser than the rest as that part of the crank tends to get the hottest (expanding more).

Re: This might slow my oil burning
 

Thanks you! All very interesting.

Glenn

Re: This might slow my oil burning
 

You jogged my memory of a fully machined 283 305HP Corvette Engine I bought from a hot rod friend. Unbeknownst to me it had been blueprinted and clearanced for racing. When I put it together with a new stock oil-pump and fired it up, I couldn't figure why there was so little oil pressure. Even after changing to a high output pump it still read quite low at idle with regular weight oil. It made my '57 Chevrolet go like a bat out of hell. On the Dyno it put out more than 1 HP per CI! I think it was 335 HP.

Re: This might slow my oil burning
 

Yeah, one thing you learn in purpose-built race engines as far as bearing clearances go -> "loose is fast" . . . "tight is death"! LOL