It is suitable for various passenger cars, vans, and heavy-duty vehicles. All Havoline products are backed by Chevron’s Limited Product Warranty. HAVOLINE® CVT+. Havoline CVT+ contains anti-wear and anti-shudder additives, as well as long-life friction modifiers to effectively maintain the high steel-on-steel friction between either a belt or chain and pulleys to transfer power, and to help prevent slipping, as well as premature wear and hot spots at the interface.