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Royal Purple Duralec Ultra Diesel 10W30 CK-4 Motor Oil - 5 Gallon

Royal Purple Duralec Ultra Diesel 10W30 CK-4 Motor Oil - 5 Gallon

Regular price $188.99 USD
Regular price $235.99 USD Sale price $188.99 USD
-19%
Royal Purple
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RLP85456
Looking for the lowest price?

Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

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Motor Oils
Duralec Ultra combines premium base oils with Royal Purple's proprietary additive technology, Synerlec, to create a high-performance motor oil that optimizes engine performance and provides superior protection in rigorous on/off...
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Free S&H Over $100 to Lower 48 Freight Items & Fluids Only Exception
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37,000+ 5 Star Reviews
MFG Fitment Guarantee
Free S&H Over $100 to Lower 48 Freight Items & Fluids Only Exception
Easy 30 Days- No Hassle Returns
37,000+ 5 Star Reviews
MFG Fitment Guarantee

Description

Duralec Ultra combines premium base oils with Royal Purple's proprietary additive technology, Synerlec, to create a high-performance motor oil that optimizes engine performance and provides superior protection in rigorous on/off highway applications. Synerlec provides unsurpassed film strength and lubricity – up to 4X more than top competitors. In addition, advanced synthetic solvency reduces engine deposits and keeps engines clean. The net result is a better performing engine, with reduced downtime and lower cost of ownership. Royal Purple recommends for use in a variety of heavy-duty applications including commuting, over-the-road trucking, agriculture, construction and mining.

This Part Fits:

Year Make Model Submodel
1994-2001 AM General Hummer Base
1997,1999-2000 Chevrolet C3500 Base
1997-1998 Chevrolet C3500 Cheyenne
1999-2000 Chevrolet C3500 LS
1997-1998 Chevrolet C3500 Silverado
1997-2002 Chevrolet Express 2500 Base
1996-2002 Chevrolet Express 2500 LS
1996-2002 Chevrolet Express 3500 Base
1996-2002 Chevrolet Express 3500 LS
1994-2001 Dodge Ram 2500 Base
2003-2006,2009 Dodge Sprinter 2500 Base
2003-2006,2009 Dodge Sprinter 3500 Base
2003-2005 Ford E-350 Club Wagon Chateau
2003-2005 Ford E-350 Club Wagon XL
2003-2005 Ford E-350 Club Wagon XLT
1995-1998 Ford E-350 Econoline Base
1995-1998 Ford E-350 Econoline XL
1995-2002 Ford E-350 Econoline Club Wagon Chateau
1995-1996 Ford E-350 Econoline Club Wagon Chateau HD
1995-2000 Ford E-350 Econoline Club Wagon Custom
2001-2002 Ford E-350 Econoline Club Wagon XL
1995-1998 Ford E-350 Econoline Club Wagon XL HD
1995-2002 Ford E-350 Econoline Club Wagon XLT
1995-1998 Ford E-350 Econoline Club Wagon XLT HD
1999-2010 Ford E-350 Super Duty Base
2006 Ford E-350 Super Duty Chateau
1999-2000,2006-2008,2010 Ford E-350 Super Duty XL
2006-2010 Ford E-350 Super Duty XLT
2003 Ford Excursion Eddie Bauer
2000-2003 Ford Excursion Limited
2000-2003 Ford Excursion XLT
1997 Ford F-250 HD XL
1997 Ford F-250 HD XLT
2009-2010 Ford F-250 Super Duty Cabela's
2008-2009 Ford F-250 Super Duty FX4
2008-2010 Ford F-250 Super Duty Harley-Davidson Edition
2008-2026 Ford F-250 Super Duty King Ranch
1999-2003,2008-2026 Ford F-250 Super Duty Lariat
2018-2024 Ford F-250 Super Duty Limited
2013-2026 Ford F-250 Super Duty Platinum
1999-2003,2008-2026 Ford F-250 Super Duty XL
1999-2003,2008-2026 Ford F-250 Super Duty XLT
2009-2010 Ford F-350 Super Duty Cabela's
2008-2009 Ford F-350 Super Duty FX4
2008-2010 Ford F-350 Super Duty Harley-Davidson Edition
2003,2008-2026 Ford F-350 Super Duty King Ranch
1999-2003,2008-2026 Ford F-350 Super Duty Lariat
2018-2024 Ford F-350 Super Duty Limited
2013-2026 Ford F-350 Super Duty Platinum
1999-2003,2008-2026 Ford F-350 Super Duty XL
1999-2003,2008-2026 Ford F-350 Super Duty XLT
2002,2004-2006 Freightliner Sprinter 2500 Base
2002,2004-2006 Freightliner Sprinter 3500 Base
2006 Hummer H1 Alpha
2002-2004 Hummer H1 Base
2016-2019 Nissan TITAN XD Platinum Reserve
2016-2019 Nissan TITAN XD PRO-4X
2016-2019 Nissan TITAN XD S
2016-2019 Nissan TITAN XD SL
2016-2019 Nissan TITAN XD SV
2019-2024 Ram 2500 Big Horn
2019-2024 Ram 2500 Laramie
2019-2021 Ram 2500 Laramie Longhorn
2019-2024 Ram 2500 Limited
2021-2024 Ram 2500 Limited Longhorn
2019-2024 Ram 2500 Lone Star
2023-2024 Ram 2500 Rebel
2024 Ram 2500 Special Service
2019-2024 Ram 2500 Tradesman
2019-2024 Ram 3500 Big Horn
2019-2024 Ram 3500 Laramie
2019-2020 Ram 3500 Laramie Longhorn
2019-2024 Ram 3500 Limited
2021-2024 Ram 3500 Limited Longhorn
2019-2022 Ram 3500 Lone Star
2020-2024 Ram 3500 SLT
2024 Ram 3500 Special Service
2019-2024 Ram 3500 Tradesman

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Testimonials

Looks like I get to be the first review for these guys. Let me start out by saying that I have had 3 other cars of a similar caliber to my GTR serviced/worked on and upgrades installed at other shops and none took the pride and level of detail that these guys did. I wish I could see all the welds on the downpipes and exhaust because it looked like artwork. Their fabricator made sure to send me daily updates and pictures which was also a big deal to me. For being an out of state experience it made it seem more like they were local to me and that I had known them for longer.

- James Lowe

Took the leap of faith on buying a set of their R35 intakes and downpipes because the price was half of anyone elses plus their car hauls a** at the track. Install went smooth and the power seems to be even better than advertised. Cant wait to get tuned in a few weeks. Their shelf tune honestly has to be 600+ hp as I pulled on a Hellcat last night. I see these guys and gals going a long ways if they can get out there and advertise. Customer service is on point paired with BIGGG savings for the winning combo.

- Luca Harris

Bought a Motec and had these guys build the harness and set it up fully. Track car that received the level of attention and detail of a show car while here. Made me feel at home every time I popped in for a visit and always offered to buy me lunch/dinner. I don’t see me shopping anywhere else as they make you feel like your family.

- Richard Westbrook

Took the leap of faith on buying a set of their R35 intakes and downpipes because the price was half of anyone elses plus their car hauls a** at the track. Install went smooth and the power seems to be even better than advertised. Cant wait to get tuned in a few weeks. Their shelf tune honestly has to be 600+ hp as I pulled on a Hellcat last night. I see these guys and gals going a long ways if they can get out there and advertise. Customer service is on point paired with BIGGG savings for the winning combo.

- Luca Harris

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