Recent Posts

61

Technical Support / Re: Renewable Diesel Use

« Last post by David Little on November 09, 2025, 04:02:27 AM »

Thanks for the information! I am aware of the pitfalls with Biodiesel. I will not ever run that. This new Shell R-99 renewable diesel is what I am looking at. Supposedly, it has all of the positives of diesel #2 (a petroleum only product). It is supposed to be stable in Low temperatures, has more Cetanes, will not gel or clog up our fuel filters like the Biodiesels and is chemically identical (almost) to Diesel #2. It is supposed to be able to be mixed with Diesel #2 with no issues. I hope that these claims by the manufactures of R99 are true. Diesel #2 is becoming extinct in Southern California!
One Member said he is running an R99 like product from Hemet, CA. Has anybody tried the Shell R99 diesel? If so, how did it go? Thank you 

62

Technical Support / Re: Renewable Diesel Use

« Last post by Zeb Severson on November 09, 2025, 02:02:23 AM »

I've been aware of the issues which have created a stigma around biodiesel, legitimate or not.

After going deeper into R99, renewable (specifically according to Neste and Propel's HPD SDS) has been wonderful in my coach and I like knowing there is less particulate to create soot. There is only one place I can easily get Propel's HPD (in Hemet) otherwise I will use Shell or local fleet. I have significantly less black smoke and it runs smoother and seems to have a little more power. I do use Optilube XPD as well.

You can find HPD on Propel's website and app. Neste isn't easily available at the pump in SoCal.

For anyone on the edge of passing the CA Clean Truck emissions I would strongly recommend running R99 before having the certification test performed.

63

Technical Support / Re: Renewable Diesel Use

« Last post by Steve Huber on November 08, 2025, 11:30:35 PM »

David,
Suggest you stay away from bio-diesel as there have been a number of reports of it causing deterioration of fuel components in coaches of your age. A search for "bio diesel" on this Forum will provide more info.
Steve

64

Technical Support / Re: Renewable Diesel Use

« Last post by David T. Richelderfer on November 08, 2025, 06:29:09 PM »

This link to an article seems to well explain the difference between petroleum diesel, biodiesel, and renewable diesel... including ignition properties, fuel origins, manufacturing processes, cold weather gelling properties, costs, and importantly, their compatibility with diesel engines.

Interestingly, the article says, renewable diesel is more compatible with diesel engines than biodiesel.

https://staroilco.net/renewable-diesel-vs-biodiesel/

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Technical Support / Renewable Diesel Use

« Last post by David Little on November 08, 2025, 04:38:30 PM »

Has anybody been using the new Renewable Diesel? It is not biodiesel, but a product made with used vegetable oils, and supposedly very similar to petroleum-based Diesel #2. Shell gas stations have all gone to the Renewable diesel. I have a Cummings C-6 8.3 Liter engine in my 37-foot long 1995 Beaver Patriot Trenton. Diesel #2 is very hard to find in my area, so I may be forced to try the Renewable diesel, but only if it has been proven to not damage the fuel system or the engine. Any advice would be greatly appreciated.

66

Technical Support / Re: Mystery tank

« Last post by Fred Cook on November 08, 2025, 12:12:45 AM »

Fred,

Total SWAG guesses here, but possibly for the aquahot or the windshield washer fluid.  A picture would really help and you may have to resize it to get it to post.

Does the tank have a hose attached?  Can you tell what direction is is heading in?  Is there anything embossed or written into the cap on the tank?

Good swag Carl but I was able to figure it out after talking to Sean from Beaver Coach Sales. That tank holds RV antifreeze. I have a witerize switch when pushed switches the water pump to that tank, and it fills the waterlines with the antifreeze. Really a neat option to have. Thanks!

67

Technical Support / Re: Mystery tank

« Last post by Carl Boger on November 08, 2025, 12:08:16 AM »

Fred,

Total SWAG guesses here, but possibly for the aquahot or the windshield washer fluid.  A picture would really help and you may have to resize it to get it to post.

Does the tank have a hose attached?  Can you tell what direction is is heading in?  Is there anything embossed or written into the cap on the tank?

68

Technical Support / Mystery tank

« Last post by Fred Cook on November 07, 2025, 08:57:11 PM »

There is small plastic tank sitting next to my water tank on the passenger, drain side. It is empty now and I had no idea what was in it or what it is used for.  I tried to post  a photo but I keep getting an error. Anyone know what that small tank it might be?

69

Technical Support / Re: Cat C12 crank no start again

« Last post by Joel Ashley on November 06, 2025, 10:47:19 PM »

This would not be a bad tool set to have on hand for pin cleaning, and good for other small filing or electronic device decorrosion tasks (Find at Amazon):

Innovative Products 8042 Female Bullet Connector Cleaner Set - 12 Piece , Red .

Other “kits”, not quite as spendy, are available.  I have one for trailer connectors, but the tools are all much too large for the cylindrical multi-pin type conversed here.  There are also tools designed for removal and replacement of pins and sockets in their cylinders if ever necessary.

Carl’s suggestion of dielectric grease on pins, or any reassemblage, is well advised, or use DeoxIT (7.4ml bottle);  for automotive, ambient air-exposed applications, the grease is probably best.  A can of electronics cleaner spray is handy, and Corrosion-X spray on air-exposed connection in any bay works well.

Joel

70

Technical Support / Re: Cat C12 crank no start again

« Last post by Carl Boger on November 05, 2025, 11:38:02 PM »

Jose,

I'm glad it worked for you.  Those wires have to travel a long way and any connections can be suspect after a few years.