Silkolene Comp 4 20W-50 Synthetic Ester Based 4-Stroke Engine Oil is particularly suitable for use with tuned racing engines or high performance units being used in hot climates, the excellent high temperature viscosity characteristics of Comp 4 20W-50 help to protect highly stressed components and maintain consistent oil pressure and shear stability. It also offers excellent ‘stay-in-grade’ performance and long lasting corrosion resistance, even during periods of intermittent use.
Silkolene Comp 4 20W-50 is also suitable for many vintage and classic engines where monograde oils were originally specified and has been successfully used in roller bearing engines. Also ideal for larger air-cooled V Twin engines.
Ester synthetics combat wear and friction on all critical load surfaces at high temperatures and during cold starts.
Electrosyntec uses electrostatic forces to bond low friction molecules to stressed metal surfaces, releasing hidden power and ensuring long-term performance retention. The exceptional stay-in-grade formulation protects engines and transmissions.
We have carriage rates to UK mainland from as little as £2.95 (Inc Vat) using our saver rate on orders less than 1kg.
Standard UK mainland carriage is now a great flat rate of £4.99 (Inc Vat) no matter what the weight (excludes some Highland post codes).
We've kept costs as low as we can.
Carriage charges are based on weight - please see our table of carriage costs for full details.
When placing an order with Opie Oils, we'll do all we can to get your order to you as quickly as possible. The vast majority of items are held in stock and dispatched from our UK warehouse. UK delivery will take less than 7 working days (i.e. Monday to Friday inclusive), unless we contact you to advise otherwise. In 90% of cases, delivery is made well before this, and priority ordering is also available (Click here for more details). In case of Bank Holidays please allow an extra working day.