Visco 2000 or mobil oil, use the dipstick to check do not let it be too full.
The type specified by the vehicle manufacturer
in your owner's manual. For most passenger car and light truck
gasoline engines today, it's any oil that meets the American Petroleum
Institutes "SH" rating.
As for the viscosity of oil to use, most new engines today
require a multiviscosity 5W-30 oil for all-round driving. The
lighter 5W-30 oils contain friction reducing additives that help
improve fuel economy, and also allow the oil to quickly reach
critical upper valvetrain components when a cold engine is first
started. Most engine wear occurs immediately after a cold start,
so it's important to have oil that is thin enough to circulate
easily -- especially at cold temperatures.
For older engines and ones that are driven at sustained highways
speeds during hot weather, 10W-30 or 10W-40 is a good choice.
Heavier multiviscosity oils such as 20W-40 are for high rpm,
high-load applications primarily and are not recommended for cold
Straight weight 30W and 40W oils aren't very popular anymore,
but some diehards insist on using them. They say the thicker
oil holds up better under high temperature (which it does), increases
oil pressure and reduces oil consumption in high mileage engines.
But straight 30W and 40W oils are too thick for cold weather
and may make an engine hard to start. They may also be too thick
to provide adequate start-up lubrication to critical upper valvetrain
components during cold weather. So switching to a straight 20W
oil would be necessary for cold weather driving. Straight 10W
oil can also improve cold starting, but is very thin and should
only be used in sub-zero climates. A multiviscosity 10W-30 or
10W-40 will provide the same cold starting benefits of a 10W oil
and the high temperature protection of a 30W or 40W oil.
For the ultimate in high temperature protection, durability
and all-round performance, synthetic oils are the way to go.
Unfortunately, most synthetic oils cost up to three times as much as
ordinary petroleum-based oils. They cost more because synthetics
are manmade rather than refined from petroleum. But this improves
their performance in virtually every aspect:
- Superior temperature resistance. Synthetics can safely
handle higher operating temperatures without oxidizing (burning)
or breaking down. The upper limit for most mineral based oils
is about 250 to 300 degrees F. Synthetics can take up to 450
degrees F. or higher. This makes synthetics well-suited for turbo
applications as well as high rpm and high output engine applications.
- Better low temperature performance. Synthetics flow freely
at subzero temperatures, pouring easily at -40 or -50 degrees
F. where ordinary oils turn to molasses. This makes for easier
cold starts and provides faster upper valvetrain lubrication during
the first critical moments when most engine wear occurs.
- Better engine performance. Synthetics tend to be more
slippery than their petroleum-based counterparts, which improves
fuel economy, cuts frictional horsepower losses and helps the
engine run cooler. The difference isn't great, but it can make
a noticeable difference.
- Longer oil change intervals. Because synthetics resist
oxidation and viscosity breakdown better than ordinary motor oils,
some suppliers say oil change intervals can be safely extended
-- in some cases stretched to as much as 25,000 miles. Such claims
are justified by the fact that synthetics don't break down or
sludge up as fast as ordinary mineral-based oils do in use.
CAUTION: For vehicles under warranty, extending the normal
change interval is not recommended because failing to follow the
OEM's maintenance schedule can void your warranty.
Synthetics are available in the same grades as ordinary motor
oils (5W-30, 5W-20 and 10W-30) as well as "extended"
grades such as 15W-50 and even 5W-50.
There are also lower-cost synthetic "blends" that
combine synthetic and petroleum-based oils in the same container.
But you can do your own blend to save money by simply substituting
a quart or two of synthetic oil for conventional oil when you change
oil. Synthetics are compatible with conventional motor oils.
Who should use a synthetic oil? The premium-priced oil is
- Turbocharged or supercharged engines
- Performance or high output engines
- Vehicles used for towing (especially during hot weather)
- Vehicles that are operated in extremely cold or hot climates
- Anyone who wants the ultimate in lubrication and protection
Take care and good luck