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    Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs. Photo: Poultry Bulletin August/September 2026

    Lower feed prices expected for December

    Frazer Barry used five words from Khoekhoegowab to explore interconnectedness, roots, changing seasons and what it means to live with an open hand during his address in Ceres. Photo: PALS

    WATCH | What five words can teach us about the land

    Lebogang Mashala, editor of African Farming. Photo: Maphuti Mongatane

    Beyond the noise, there are partnerships that grow agriculture

    Photo: Poultry Bulletin (Issue 33) August/September 2026

    Poultry news | Producer prices lower in Q1

    Naltwasha Leripe with her goat herd in Samburu, Kenya. Photo: Georgina Goodwin, courtesy of Conservation International

    Early drought warnings must be matched by solutions

    Maile Matsimela From Maile's desk

    More emerging farmers mean little if they’re not equipped to survive harsh conditions

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    Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs. Photo: Poultry Bulletin August/September 2026

    Lower feed prices expected for December

    Photo for illustrative purposes: Maile Matsimela

    Why stock density is the ‘muscle’ in veld management

    Photo: Poultry Bulletin (Issue 33) August/September 2026

    Poultry news | Producer prices lower in Q1

    Naltwasha Leripe with her goat herd in Samburu, Kenya. Photo: Georgina Goodwin, courtesy of Conservation International

    Early drought warnings must be matched by solutions

    Photo: Poultry Bulletin (Issue 33) August/September 2026

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    Photo for illustrative purposes: Getty Images

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    Obakeng Ntshabele’s journey into farming began at the age of nine in Sefikile, a rural mining village in the Moses Kotane Local Municipality in North West. The family started farming on communal land in the early 1990s. Photo: Lebogang Mashala

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    Photo for illustrative purposes: Kmatta/Getty Images

    Farmers need more than finance to succeed

    Photo for illustrative purposes: Maile Matsimela

    Why stock density is the ‘muscle’ in veld management

    Photo: Poultry Bulletin (Issue 33) August/September 2026

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    Photo for illustrative purposes: Getty Images

    The goat farmer’s manual | How to conduct a post-mortem examination on your goat

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    Photo for illustrative purposes: Maile Matsimela

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    Thato Kgantsi (left) and Obakeng Taje are seeing promising results with Pannar’s PAN 1521R soybean cultivar. Photo: Marieke Snyman

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    Pretty Kubyane, co-founder and tech lead of eFama App, received the 2026 Veuve Clicquot Bold Future Award for using technology and AI to transform agricultural supply chains across Africa. Her digital marketplace currently supports more than 40 000 farmers across South Africa. Photos: Supplied

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    From left are Abrie van Wyk (BKB Bredasdorp), Len Bornman (auctioneer), Jurie, Liza, Cecila and Boeta Wessels (sellers), Ean Nel (BKB) and Vaughan Collier (Dohne-Merino SA, on behalf of the buyers). In front is Glen Hoffman (handler). Photo: Supplied

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    Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs. Photo: Poultry Bulletin August/September 2026

    Lower feed prices expected for December

    Frazer Barry used five words from Khoekhoegowab to explore interconnectedness, roots, changing seasons and what it means to live with an open hand during his address in Ceres. Photo: PALS

    WATCH | What five words can teach us about the land

    Lebogang Mashala, editor of African Farming. Photo: Maphuti Mongatane

    Beyond the noise, there are partnerships that grow agriculture

    Photo: Poultry Bulletin (Issue 33) August/September 2026

    Poultry news | Producer prices lower in Q1

    Naltwasha Leripe with her goat herd in Samburu, Kenya. Photo: Georgina Goodwin, courtesy of Conservation International

    Early drought warnings must be matched by solutions

    Maile Matsimela From Maile's desk

    More emerging farmers mean little if they’re not equipped to survive harsh conditions

  • Weather
  • Livestock
    • All
    • Cattle
    • Goats
    • Pigs
    • Poultry
    • Sheep
    Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs. Photo: Poultry Bulletin August/September 2026

    Lower feed prices expected for December

    Photo for illustrative purposes: Maile Matsimela

    Why stock density is the ‘muscle’ in veld management

    Photo: Poultry Bulletin (Issue 33) August/September 2026

    Poultry news | Producer prices lower in Q1

    Naltwasha Leripe with her goat herd in Samburu, Kenya. Photo: Georgina Goodwin, courtesy of Conservation International

    Early drought warnings must be matched by solutions

    Photo: Poultry Bulletin (Issue 33) August/September 2026

    Poultry News | Funding for Nigeria to fight HPAI

    Photo for illustrative purposes: Getty Images

    The goat farmer’s manual | How to conduct a post-mortem examination on your goat

  • Crops
    • All
    • Fruit
    • Grains
    • Legumes
    • Vegetables
    Obakeng Ntshabele’s journey into farming began at the age of nine in Sefikile, a rural mining village in the Moses Kotane Local Municipality in North West. The family started farming on communal land in the early 1990s. Photo: Lebogang Mashala

    From herding cattle at nine to 300ha of sunflower: Obakeng Ntshabele’s farming journey

    Agriculture Minister Willie Aucamp with Minister Sun Meijun of the General Administration of Chinese Customs (GACC). Photo: Supplied

    SA cherries head to China after record-breaking export deal

    Photos: Lebogang Mashala

    Less diesel, smarter sunflower: Obakeng Ntshabele’s conservation turnaround

    The women were all smiles at the Hazera event. Photo: Supplied

    20 years of seed and partnerships: Hazera South Africa honours women driving agriculture

  • Farm Health
    • All
    • Animal Health
    • Financial Health
    • Plant Health
    Photo for illustrative purposes: Kmatta/Getty Images

    Farmers need more than finance to succeed

    Photo for illustrative purposes: Maile Matsimela

    Why stock density is the ‘muscle’ in veld management

    Photo: Poultry Bulletin (Issue 33) August/September 2026

    Poultry News | Funding for Nigeria to fight HPAI

    Photo for illustrative purposes: Getty Images

    The goat farmer’s manual | How to conduct a post-mortem examination on your goat

    Photo for illustrative purposes: Getty Images/Srdjan Stepic

    From ASF to FMD: Pork industry invests in vets, vaccines and traceability after disease crisis

    Warm and dry conditions in Boesmanland at Loeriesfontein. Photo: Chrismari van der Westhuizen-Batt

    Preparing your cattle herd for a potentially dry summer – Beefmaster Group

  • Ask The Experts
    Photo for illustrative purposes: Maile Matsimela

    Why stock density is the ‘muscle’ in veld management

    Photo for illustrative purposes: Getty Images

    The goat farmer’s manual | How to conduct a post-mortem examination on your goat

    Warm and dry conditions in Boesmanland at Loeriesfontein. Photo: Chrismari van der Westhuizen-Batt

    Preparing your cattle herd for a potentially dry summer – Beefmaster Group

    Photo for illustrative purposes: Supplied

    How to improve fuel efficiency by applying correct mechanisation practices

    Photo for illustrative purposes: Getty Images

    The 3 Ds of retirement – Why succession planning can’t wait

    Tick infestation is far more than just a nuisance; it’s a serious threat to animal health and farm profitability. Photo: Roelof Bezuidenhout

    Why ticks remain a livestock farmer’s biggest disease threat

  • Products & Services
    • All
    • Services
    Photos: Supplied

    Why building a national hot sauce brand shouldn’t be this hard

    Thato Kgantsi (left) and Obakeng Taje are seeing promising results with Pannar’s PAN 1521R soybean cultivar. Photo: Marieke Snyman

    WATCH | How these new-generation farmers found success with Pannar’s soybeans

    Photos: Supplied

    Kasi Sauce: How a bartender built an agro-processing business from his village home

    The Ford Everest range gives you the confidence to tackle a variety of terrain – from tarmac roads to uneven and muddy conditions. Photo: Supplied

    Ford Everest – Developed for wherever the road may lead

    chickens chicks feed epol

    Feed efficiency explained: How to get more performance from every bag

    FMD vaccination Biogénesis Bagó

    Study validates 100% protection of Argentina’s vaccine against SAT1 foot-and-mouth disease (FMD)

    Some of Tiger Brands’ familiar household brands that are produced at Tiger Brands’ Culinary facility in Boksburg, Gauteng. Photo: Supplied

    Tiger Brands expands solar power to seven sites in drive for cleaner agro-processing

    Black-owned agro-processing businesses in South Africa can get help to upscale. Eligible businesses include companies involved in processing or manufacturing products from agricultural raw materials. Photos: Lebogang Mashala and supplied

    Black-owned businesses, apply now for Agro-Processing Scale-Up Programme!

    André van Tonder from Pretoria demonstrated how the versatile Cortool tool is used to form wire clamps and fix broken fences.

    WATCH | How to make low-cost wire clamps for irrigation pipes and fencing

  • Technology
    • All
    • Digital Tools
    • Farm Machines
    • Plans Farmers Make
    Photos: Poultry Bulletin June/July 2026

    Big dreams in rural KZN – poultry and vegetable farmer Bukhosi Dlamini

    Photo for illustrative purposes: Getty Images

    Successful farmers never stop learning

    Photot for ilustrative purposes: Hiraman/Getty Images

    Farmers are going digital and it’s changing how agriculture works

    The online system for authorising private FMD vaccination has been launched. The government will continue to provide vaccines in new outbreak areas and to farmers who cannot afford it themselves. Photo: Per-Anders Pettersson/Getty Images

    New online system lets farmers apply to vaccinate their own livestock against FMD

    Pretty Kubyane, co-founder and tech lead of eFama App, received the 2026 Veuve Clicquot Bold Future Award for using technology and AI to transform agricultural supply chains across Africa. Her digital marketplace currently supports more than 40 000 farmers across South Africa. Photos: Supplied

    40 000 farmers and counting – eFama’s Pretty Kubyane wins 2026 Veuve Clicquot Bold Future Award

    WATCH | Small tractor, big versatility: Mahindra targets smallholder farmers with new OJA range

  • Events
    • All
    • Agri-Development Imbizo 2026
    • AgriFund Connect Summit 2025
    • Auctions
    • Earth Harvest Gala 2025
    • Farm Days
    From left are Abrie van Wyk (BKB Bredasdorp), Len Bornman (auctioneer), Jurie, Liza, Cecila and Boeta Wessels (sellers), Ean Nel (BKB) and Vaughan Collier (Dohne-Merino SA, on behalf of the buyers). In front is Glen Hoffman (handler). Photo: Supplied

    Highest price of R71 000 for Dohne Merino

    Lot 11 of Vredesig Dormers and Suffolks also achieved the top price of R22 500. Photo: Supplied

    Quality Vastrap Dormers achieving quality prices

    Farmers, agricultural businesses and industry organisations gathered in Bredasdorp for the second day of NAMPO Cape 2026, with discussions ranging from grain production and agricultural finance to El Niño and alternative sources of fertiliser. Photo: Kaap Agulhas Municipality

    From canola growth to the costs keeping farmers awake – Day 2 at NAMPO Cape

    NAMPO Cape brings agricultural businesses and organisations together at Bredasdorp Park for four days of exhibitions, discussions and demonstrations. Photo: Talitha Janse van Vuuren

    Wheat prices, wool opportunities and FMD on the agenda as NAMPO Cape 2026 gets under way

    Lot 4 was one of two Beefmaster bulls that fetched the highest price of R100 000 at the Ivukile Beefmaster and Valley Droughtmaster production auction. Photo: Gavin Isted

    21st Ivukile and Valley auction delivers strong prices

    The Beefmaster bull JAN 23-3125 from the Janmarck stud sold for a South African record price of R1,1 million at the national Beefmaster auction in Parys. Photo: Supplied

    R1.1 million – Springbok brothers set new Beefmaster record

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Home News

High-quality oil boosts engines

10 May 2024
in News
Reading Time: 4 mins read

10 May 2024

Sponsored content

Caltex’s Delo® 400 SLK SAE 15W-40 engine oil will help your farm save costs while maintaining productivity.

Every farmer knows that machinery downtime spells trouble for the profitability and sustainability of a farm. Therefore, what is poured into the engines of machinery is extremely important. Astron Energy, the licensee of Caltex lubricants, understands this well. That’s why the company strives to offer only the best to its customers, such as Caltex’s Delo® 400 SLK SAE 15W-40 engine oil — a top-quality heavy-duty diesel engine oil.

Delo® 400 SLK, with advanced ISOSYN® technology, improves on the Delo® 400 MGX and now ranks first in Astron Energy’s premium series of heavy-duty diesel engine lubricants. 

Delo® 400 SLK is a low SAPS engine oil with API CK-4 specification. Low SAPS means it contains low levels of sulphated ash, phosphorus and sulphur. It is suitable for use with diesel fuel with a sulphur content of up to 500 ppm. The API CK-4 category remains compatible with older CJ-4 (from the Delo 400 MGX), CI-4 Plus, CI-4 (standard) and CH-4 categories.

Delo® 400 SLK SAE 15W-40 provides improved oxidation stability, allowing engines to have longer drain intervals. It also enables smoother and uninterrupted performance, even for vehicles operating under stop-and-go and extreme conditions.

Delo® 400 SLK’s exceptional anti-wear system provides protection for engine components against wear and corrosion. All of this means improved equipment reliability, reduced vehicle downtime and lower operating costs.

Delo® 400 SLK is capable of boosting the performance of various engine designs. This makes one type of oil suitable for vehicles from different original equipment manufacturers, from American and Japanese to European, old or new, with or without a diesel particulate filter (DPF) after-treatment device.

Thus, it helps reduce inventory costs for vehicle operators. This is attributed to Delo® 400 SLK meeting lubricant standards for newer engines (Euro IV and V standards) while remaining compatible with older engines. 

This engine oil offers the following benefits to customers:

Reduces operating costs

Exceptional soot dispersion keeps soot in suspension, minimising filter clogging, cylinder head sludge, abrasive polishing wear and oil thickening. It provides strong protection against wear and corrosion of engine components due to the effective anti-wear additive system. Therefore, it improves equipment durability and reliability while reducing machinery downtime.

Maintains emission control system performance

This engine oil is formulated with the latest generation low SAPS technology, which means reduced levels of metals, phosphorus and sulphur. Furthermore, Delo® 400 SLK extends the service life of sensitive catalyst metals and lengthens diesel particulate filter cleaning intervals.

Reduces inventory costs

Delo® 400 SLK is a balanced formulation that provides excellent overall performance in mixed vehicle fleets with different engine designs, including modern low-emission diesel engines. It allows for one oil for many services and reduces the risk of product misapplication. Additionally, this heavy-duty oil is compatible with previous API oil service categories and engine models.

Uses for vehicles on and off highways

  • Commercial road transport with or without DPF.
  • Old and new vehicles.
  • Stop-and-go vehicles, such as buses and waste removal trucks.
  • Most light-duty vehicles with diesel engines.
  • Vehicles and facilities not used on highways, including agricultural machinery.
  • Many gas-powered heavy-duty vehicles.
  • Diesel engines using diesel fuel with up to 20% biodiesel (B20).

For more information on Caltex’s Delo® 400 SLK SAE 15W-40 engine oil, speak to one of Astron Energy’s technical experts, account managers and distribution partners, or visit its booth at the Nampo Harvest Day.

It could be just the product your farm or business needs to save costs and ensure optimal vehicle performance.

Inquiries: E-mail: zacommercial@astronenergy.co.za, ZATechSupp@astronenergy.co.za; Website: www.lubricants.caltex.co.za

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Latest News

Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs. Photo: Poultry Bulletin August/September 2026

Lower feed prices expected for December

14 September 2026

Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs.

Photo for illustrative purposes: Kmatta/Getty Images

Farmers need more than finance to succeed

14 September 2026

Access to finance matters, but money on its own won't build successful farming businesses. A discussion at NAMPO Cape 2026...

Frazer Barry used five words from Khoekhoegowab to explore interconnectedness, roots, changing seasons and what it means to live with an open hand during his address in Ceres. Photo: PALS

WATCH | What five words can teach us about the land

14 September 2026

Musician and broadcaster Frazer Barry used five words from the Khoekhoe language Khoekhoegowab to explore interconnectedness, ancestry, changing seasons and...

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Strong maize harvests during the last two years have driven down yellow maize prices significantly, directly reducing poultry feed costs. Photo: Poultry Bulletin August/September 2026

Lower feed prices expected for December

14 September 2026
Frazer Barry used five words from Khoekhoegowab to explore interconnectedness, roots, changing seasons and what it means to live with an open hand during his address in Ceres. Photo: PALS

WATCH | What five words can teach us about the land

14 September 2026
Lebogang Mashala, editor of African Farming. Photo: Maphuti Mongatane

Beyond the noise, there are partnerships that grow agriculture

13 September 2026

Established in 2020, African Farming aims to support black commercial farming in South Africa by providing informative and inspiring content and creating communication and education channels to help farmers develop and grow. Its initiatives include African Farming information days and workshops, which empower farmers – whether new or experienced – to build profitable and sustainable farming enterprises.

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