Oil cleaner after long trip?

[randomhero439]

I use my civic primarily for pizza delivery and in-town driving, so it barely sees highway usage. When driving pizza my engine is usually running continuously for multiple periods 30+min, almost all city driving. The civic is on its FIRST ever synthetic oil change and the oil got black very quickly within the first 500 miles. The oil has 2500 on it now, and im gonna replace it.

I took a 60 mile round trip drive varying between 60mph & 75mph. I checked my oil later that night after sitting for a few hours and it a golden brown color instead of black. Could that trip have burned off contaminants and excess fuel in the oil? If my oil sees continuous 30min trips of city driving for 8hrs+ shouldnt that burn off contaminants too?

ALSO. My next change will be in 5,000 miles (severe interval). I figure any sludge will be rinsed out after that, could i go 10,000 miles (normal interval) with all the city driving i do. Occasional highway usage

 

[HerrStig]

Drive backwards, that'll clean it.

 

[mechtech2]

Originally Posted By: HerrStig
Drive backwards, that'll clean it.


Egg-sellent! [Mr Burns]

But that dirty to clean thing is unusual.

 

[sir1900]

I wouldn't worry about it at this point. The M1 can handle it. You could conceivably go 5000 miles then change it out if you want.

Also, color isn't the determining factor when it comes to oil life.
I have never heard of oil going from black to brown, so it'd be interesting to see what others have to say about this.

 

[UNC017]

A long trip will drive out water and fuel diluted into the oil... but it won't remove solid particles from blow-by, acids from water and combustion by-products, etc. Color means almost nothing.

 

[LeakySeals]

Maybe the classic is becoming more efficient as it plugs up with sludge. It has a standard dirt trapping capacity so listen for any ticking that is not normal. Sign that oil flow is becoming restricted.

 

[toneydoc]

Dude.
Be a hero to your engine and change it with synthetic every 5k miles. You delivery guys are hard, meaning extreme or severe service, on your engines. Oil is cheap compared to a rebuild or new engine. I would never go past 5k miles on a delivery engine car. Period.

 

[theaveng]

Originally Posted By: randomhero439
The civic is on its FIRST ever synthetic oil change and the oil got black very quickly within the first 500 miles. The oil has 2500 on it now, and im gonna replace it.

I took a 60 mile round trip drive varying between 60mph & 75mph. I checked my oil later that night after sitting for a few hours and it a golden brown color
(1) Synthetic washed-out the sludge from the old natural oil. (2) The light service of highway mileage gave the filter enough time to remove the dirt. And also to burn-off fuel that got in the oil.

 

[randomhero439]

So this pizza driving is a pretty harsh enviroment for even synthetic oil and a engine that is specced for 5k/10k intervals... How does Pennzoil Ultra and a PureOne every 5k sound???

Reason wana use PU on the Civic is because its what I use on my Accord. I could use the leftovers.

 

[theaveng]

Originally Posted By: randomhero439
How does Pennzoil Ultra and a PureOne every 5k sound???
Good. PureOne is a top filter.

 

[Norm Olt]

"60 miles" is now a "long trip"?

Since when?

I'd use the severe service interval because that's what it is...

Cheers!