Engine oil

[Peacock]

That's one advantage.. However, VERY few people take advantage of extended OCI's. What's the other advantages other than extreme cold temp flow and high temps well above than what Dino will protect at? Any lab that performs UOA's will confirm that wear rates are the same. Blackstones website for example.

That's the fault of the people who don't utilize the advantage of longer oci's. The manufactures pec the stuff for that reason, among others.

Other advantages include:
Better shear stability
Better lubrication at extreme temps
Less burn off and ash production
Don't think they normally contain detergents
Less loss to evaporation
Generally available in a larger weight spread.

 

[Soundguy]

Me, I can't make up my mind. Dino in some, syn in some, blend in some. Just playing the field. Haha

Actually, I use syn unless the engine consumes oil using syn. Then I try blend. If tolerable I stay with blend. Some engines like my Caddy Deville Northstar will only take Dino unless I top off the oil at every fuel stop. So I stay with dino on that one. I have a Briggs BCS 8 HP IC rototiller engine that is the same way.

On that blend.. i think I'd skip it. it costs usually nearer to syn than dino.. and how do you know how much blend percentage? If I thought I needed blend.. I'd go full syn.. but that is just me. ( mind you I have also tried the store brand syn oils as a compromise too. ) at least in some gas engines. I have some lawn equipment and an antique gasser tractor on wal-syn I believe a few air compressor sumps I have are also running wal-syn.

 

[Soundguy]

i'd have used straight sae 50.. it should have actually had similar pour point with a 85 gear lube. Many old ford steering boxes spec'd an 80w gear lube OR a 50w engine oil.

When I was a kid I got a generic riding mower at the dump. The guy dropping it off said it would burn oil almost as fast as gas. Since it was better than the push mower I took it home. I found that 85w gear oil worked great in the 12hp Briggs. It would pop and snap when you shut it off but it ran for years without an oil change. Never burnt a drop of oil. I eventually gave it away filling in the new owner. I don't know how long it ran for but it always amazed me. Granted the Briggs has splash lubrication and I never mowed in the dead of winter when it was -30 out.

 

[Thomabear]

Scroll down to frequent asked questions 28&29 of the attached link. I would think labs performing thousands of UOA's for a living would know a little about oil. At least more than your average high school dropout using the internet rather than holding a tribology degree. No offense with that statement just stating the facts as I see them. Bottom line is you can buy into the hype or you can save a little money and experience the same end result. To each his own. All my engines outlast my vehicles by a large margin and that works for me. From a common sense standpoint I see no reason to waste my $$ on synthetic. Like I said, see you guys at 300 to 400k. If you're short on change I'll buy you a beer. :drink:

Blackstone Labs

 

[Soundguy]

In my 187K mile Audi, the Mobil 5w-40 I was using disappeared faster than the Mobil 10w-40 High Mileage stuff.. So I used that in summer, and the 5w in winter.

I hear ya. I have a 2000 yukon that drinks oil.. I do not use the gm reccomended energy saving oil ( whatever it is.. 5w30.. etc. ) that runs thru like water. i have to use 10w40 now. that seems to hold it for 1000m at a time.

 

[Peacock]

Scroll down to questions 28&29. I would think labs performing thousands of UOA's for a living would know a little about oil. At least more than your average high school dropout using the internet rather than holding a tribology degree. No offense with that statement just stating the facts as I see them. Bottom line is you can buy into the hype or you can save a little money and experience the same end result. To each his own. All my engines outlast my vehicles by a large margin and that works for me. From a common sense standpoint I see no reason to waste my $$ on synthetic. Like I said, see you guys at 300 to 400k. If you're short on change I'll buy you a beer. :drink: Blackstone Labs

Wow!!

 

[Diamondpilot]

When I was a kid I got a generic riding mower at the dump. The guy dropping it off said it would burn oil almost as fast as gas. Since it was better than the push mower I took it home. I found that 85w gear oil worked great in the 12hp Briggs. It would pop and snap when you shut it off but it ran for years without an oil change. Never burnt a drop of oil. I eventually gave it away filling in the new owner. I don't know how long it ran for but it always amazed me. Granted the Briggs has splash lubrication and I never mowed in the dead of winter when it was -30 out.

85 gear oil is about the same viscosity as 30 motor oil. It's the additives that make it "thicker", or sticky if you will.

Chris

 

[Diamondpilot]

Not true at all. Many vehicles come with synthetic oil these days. Nearly all Euro cars, most every performance domestic and even most current Hondas.

True. Two of my three vehicles came with synthetic from the factory. These are 2007 and 2008 vehicles.

Chris

 

[Diamondpilot]

The advantages to synthetic are many.

The biggest is the ability to run much longer oil change intervals.

And now days the cost difference is negligible. I just bought enough oil to do 50 oil changes. On average the synthetic was only $25 with a quality filter. The conventional was $18 with a so so filter.

Synthetic is a cost savings in my eyes being able to safely run twice the miles between changes.

Chris

 

[Midniteoyl]

I hear ya. I have a 2000 yukon that drinks oil.. I do not use the gm reccomended energy saving oil ( whatever it is.. 5w30.. etc. ) that runs thru like water. i have to use 10w40 now. that seems to hold it for 1000m at a time.

Audi actually recommends the 0w-40 now instead of the 5w-40 and the 5w-40 moved into the 'diesel turbo truck' area, but I used it anyways as the zinc was still there.. And the 0w-50 would disappear so much faster I thought I was driving a flat head