We have provided a maintenance interval chart which is based on general industry standards. The time and mileage given are the most conservative figures (low end recommendations), and therefore should be sufficient to meet or beat most manufacturer's warranty requirements. If you have an owner's manual for your vehicle, we would still recommend that you consult it and see what the manufacturer specifically recommends (there may be some odd or atypical components on your vehicle that require special attention).
Because this chart is designed to cover all vehicles, we may have included items which are not applicable to your exact model (for instance, many vehicles use hydraulic valve lifters, making periodic adjustment of the valve clearance unnecessary). So when looking at items on the chart, remember to check if they are applicable to your vehicle (using an owner's manual or the online repair manual written specifically for your model).
Also, keep in mind that we may have included items which we believe are very important, even if your particular manufacturer does not. Brake fluid is one item of which not all manufacturers require periodic replacement in order to keep in warranty. But, that doesn't change the fact that brake fluid is hydroscopic meaning that it absorbs moisture from the atmosphere. Over time moisture in the brake system will lead to corrosion and damage to internal parts. Also, a sufficient level of moisture in the fluid can dramatically lower its boiling point. Should temperatures during hard braking (mountain driving, trailer towing, racing, etc) allow the brake fluid to boil, you could experience and sudden and complete loss of braking ability. So if you plan on keeping a vehicle for any length of time, and/or you use it under harsh conditions (such as towing or racing), you would be wise to follow our fluid replacement guidelines.