Arcus Senilis does not create any type of problem with vision. Corneal arcus is not considered much of a problem in the older population; however, in patients 40 and younger there is a chance the patient has elevated blood lipid levels. When found in a younger patient the condition is often called arcus juvenilis. Cause of Corneal Arcus. Corneal arcus (arcus senilis) is common in older patients as a fairly common age-related change and as previously stated is often then called arcus senilis. Many people develop the condition if they live long enough. Corneal arcus has been somewhat controversial over the years regarding its link to cardiovascular disease due to high lipid/cholesterol levels.
Report Abuse. Mixing different blends or different brands of any oil is definitely NOT a good idea, especially when it deals with marine engines (2 or 4 stroke), vehicle transmissions, gearboxes, lower units and I/O sterndrives.e was asking about TC-W3 mixing with TC-W3 (plus) oil. Before the marketing of the plus oil, The factory recommended using the premium oil. When they had developed the synthetic enough to market, they added it to the line, as a substitute. You can use either. The question then becomes can you mix the two.
Chevron Delo 400 15W40 or Mobil Delvac 15W40. Both top of the line dino motor oils. I've seen COSTCO carry one or the other but not both. Have not seen diesel rated synthetic CI-4 or CI-4 plus oils at COSTCO. I lived in the Tamaqua area and Oxford area of PA and did not experience the need to go to a lighter weight oil for the winter.