HR-1 is a 15W50 engine oil by Driven Racing Oils (Joe Gibbs) which is suitable for older style pushrod (OHV) engines and has been developed to provide increased protection for camshafts. HR-1 also includes additives which protect against rust and corrosion even when the engine isn't running. This makes it ideal for classic cars which aren't used as daily drivers.
- Excellent protection for supercharged, big block and looser clearance engines
- Ideal for long stroke and high compression engines
- Features storage protection additives that guard against rust and corrosion during winter storage
Ideal for cast iron V8 engines or older engines with looser tolerances.