Use your equipment handbook as the starting point — it lists the API, ACEA, and OEM approvals required, and the recommended viscosity grade. For engine oils the most common grades for plant and commercial applications are 10W-40, 15W-40, and 20W-50; for hydraulic systems, ISO VG 32, 46, and 68. If you don't have the handbook, the existing oil being changed is the next best reference — match its specification and viscosity. WhatsApp 07754288583 with the engine make and model and we can confirm the right grade.

Parts For Machines is an Authorised Distributor and Seller of Shell, Castrol, and Q8 across the oil and lubricant range. Shell covers the Rimula heavy-duty diesel engine oil range and Spirax transmission oils. Castrol covers CRB heavy-duty diesel engine oil, Hyspin hydraulic oil, and SF antifreeze. Q8 covers heavy-duty engine oils, hydraulic oils, and long-life antifreeze. All three offer OEM-equivalent grades approved for original-fill replacement on most plant, agricultural, and commercial vehicles.

Generally not advisable. Different brands use different additive packages that can react with each other, leading to precipitation, additive depletion, or reduced anti-wear performance — especially in hydraulic and gear oils where additive chemistry is critical. For small top-ups (under 10% of system capacity), staying within the same viscosity grade and API/ACEA classification is usually acceptable. For larger top-ups, oil changes, or any mixing of different specifications, drain and refill with a single product. Always confirm against the equipment handbook — some OEMs explicitly prohibit brand mixing under their warranty terms.

Yes. The most common pack sizes for plant, agricultural, and commercial use are 20-litre drums and 208-litre barrels. Pallet quantities and full-truck loads are available on volume — contact the team via WhatsApp 07754288583 or email [email protected] with the brand, grade, and quantity needed for a quote. Trade pricing applies on bulk orders. 5-litre and 1-litre packs are also carried for smaller workshops and top-up requirements.

Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.

Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.

API and ACEA are the universal lubricant performance standards every reputable oil meets. They are your baseline check, match the code your equipment handbook specifies (for example API CK-4 or ACEA E7 for heavy-duty diesel, ACEA E9 for low-SAPS Euro IV/V/VI engines) and the oil is technically suitable for your machine. Every oil on PartsForMachines lists its API and ACEA classifications on the Technical Specifications tab of the product page.

An OEM Specification is the lubricant requirement set by a vehicle or equipment manufacturer (for example MB 228.3, VW 504.00, Volvo VDS-4.5). When an oil lists the code, the oil manufacturer has developed and tested it to meet that criteria. An OEM Approval goes a step further, the oil has been formally tested and signed off by the equipment manufacturer and listed on their official approved-products register (for example MB-Approval 228.3). Match the code from your equipment handbook against the product page, an Approval is the strongest match for service use.

Three checks against your equipment handbook. (1) Viscosity. Engine oils use SAE multigrade (10W-40, 15W-40 for the workhorse heavy-duty diesel band; 5W-30 or 10W-30 for modern Euro VI engines and stop-start; 20W-50 for older or heavily loaded). Hydraulic oils use ISO viscosity grades (ISO VG 32, 46, 68; ISO VG 46 is the modern standard for excavators and mini-diggers). (2) API/ACEA classification. (3) OEM Specification or Approval. All three appear on the Technical Specifications tab. A higher-tier approval can usually be used where a lower tier is specified, but not the reverse.

Each oil product page carries a Technical Specifications tab listing API, ACEA, OEM Specifications and OEM Approvals; a Description tab with application detail and SAPS rating; and a Download tab with the manufacturer's Technical Data Sheet. Compare With Similar Items places candidate oils side-by-side on viscosity, classification, approvals, density and flash point so you can pick between equivalents. Variations lets you switch pack size (20L or 208L) without changing product. For fitment questions, Ask Simon on the product page gives an instant suitability check.

Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.