Author Topic: OMG an oil thread!!  (Read 102 times)

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Online scottly

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OMG an oil thread!!
« on: December 31, 2025, 09:15:44 AM »
I'm also a fan of Shell Rotella. It's non-detergent
 
Rotella IS a detergent oil! In fact, diesel specific oil has more detergent than standard oil, due to the dirty burning fuel. ;)
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Offline Godffery

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Re: OMG an oil thread!!
« Reply #1 on: December 31, 2025, 12:32:11 PM »
I'm also a fan of Shell Rotella. It's non-detergent
 
Rotella IS a detergent oil! In fact, diesel specific oil has more detergent than standard oil, due to the dirty burning fuel. ;)
Oh...? Well now, that's news to me then.  :-[
« Last Edit: January 01, 2026, 07:58:24 AM by Godffery »

Online HondaMan

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Re: OMG an oil thread!!
« Reply #2 on: December 31, 2025, 07:06:59 PM »
Rotela's diesel-rated oils are not detergent-y. It causes havoc in diesel engines if it foams.
When I worked in the oilfield this was a huge deal: guys got fired for ever getting it mixed up, and those big trucks used 4-6 gallons of oil per change. The V-24, 4800 CID frac engines used 32 gallons of it.
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Online scottly

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Re: OMG an oil thread!!
« Reply #3 on: December 31, 2025, 07:49:11 PM »
Rotella diesel oil has a high level of detergent. When a diesel engine is run with standard oil for any length of time, the rings get so gummed up with carbon that the engine develops "Enough blow-by to float a Cat-Hat over the breather". :o The reason people started using it in our old bikes and cars is because it still had the zinc in it, when they phased it out of oil for new cars.
« Last Edit: December 31, 2025, 09:06:16 PM by scottly »
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Offline PeWe

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Re: OMG an oil thread!!
« Reply #4 on: January 01, 2026, 05:51:06 AM »
I'm also a fan of Shell Rotella. It's non-detergent
 
Rotella IS a detergent oil! In fact, diesel specific oil has more detergent than standard oil, due to the dirty burning fuel. ;)
+17 ;D ;D
Finally oil talk!! ;D

I have read about diesel oils with their zinc content AND the detergents that clean the zinc off.

Modern oils have less zinc due to the catalytic converters.

I wonder how modern bikes use the good Spectro and Redline oils when they have cat's that must be short lived when zinc content is 1900-2450ppm.
I guess the vehicle inspections do not test motorcycles as cars .

That amount of zinc is good for our old bikes. Plus good viscosity, not too thin.

I have ordered zinc in small bottles for my oils with low zinc content.
https://ebay.us/m/oMpKDH

Not too much either.
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Offline BenelliSEI

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Re: OMG an oil thread!!
« Reply #5 on: January 01, 2026, 06:35:24 AM »
I'm also a fan of Shell Rotella. It's non-detergent
 
Rotella IS a detergent oil! In fact, diesel specific oil has more detergent than standard oil, due to the dirty burning fuel. ;)

Thanks for the info. Didn’t know that! I like to use around the farm as it is priced right. I also use it for “first starts”.

Offline britman

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Re: OMG an oil thread!!
« Reply #6 on: January 01, 2026, 12:12:40 PM »
Nothing wrong with a good oil thread......Always brings to mind the old saying about opinions and a certain body orifice.......

Online lash

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Re: OMG an oil thread!!
« Reply #7 on: January 01, 2026, 02:38:23 PM »
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