Match the symptoms ol older engines with the extra benefit of high mileage oils: Increased blow by gases and deposit formatid Extra detergents to reduce deposits Contain special seal conditioner to help leaks Extra anb-wear additives to reduce friction

## Step 1<br />The problem involves matching the symptoms of older engines with the benefits of high mileage oils. The symptoms of older engines include increased blow-by gases and deposit formation. The benefits of high mileage oils include extra detergents to reduce deposits, special seal conditioners to help leaks, and extra anti-wear additives to reduce friction.<br /><br />## Step 2<br />The first symptom, increased blow-by gases, is a sign of increased wear and tear in the engine. The extra anti-wear additives in high mileage oils can help reduce friction and wear, thus reducing blow-by gases.<br /><br />## Step 3<br />The second symptom, deposit formation, is a sign of sludge and varnish build-up in the engine. The extra detergents in high mileage oils can help reduce these deposits, thus improving the engine's performance.<br /><br />## Step 4<br />The third symptom, leaks, is a sign of seal wear and tear. The special seal conditioners in high mileage oils can help reduce these leaks, thus improving the engine's performance.