According to ExxonMobil, that’s not true,
because current engine technology requires
no break-in period. You can use synthetic
oil at any time.
Others say you should flush your engine
before changing to synthetic motor oil.
Again, that’s not necessary, say experts.
There’s no need for special preparation
before making the switch, and, to bust
another myth, you don’t need a special filter
to use synthetic oil. Just as with conventional
oil, the better the filter, the more effectively it
will work, but you can use the same type of
oil filter with synthetic oil that you would
use with conventional oil.
Finally, many people worry that synthetic oil will leak out of the seals of older
cars. The pros at ExxonMobil say that high-quality synthetic motor oils do not cause
leaks. If you have an older engine in good
condition with no existing leaks, synthetic
oil will confer all of the benefits it does in
newer engines. C
and what the indicator lights inside your car
might be trying to tell you about it. He says that
when you work with your battery, always wear
protective eyewear. Remove all jewelry and
wear long sleeves and gloves to protect your
hands and arms from battery acid.
The following tips can help you keep your
battery in shape throughout the year.
• Have your battery and electrical system
professionally tested every three to six months
and especially before heading out on a trip.
Check with your local auto shop or parts
store; many will perform the test for free.
• Do a visual inspection to see if the battery case is bulging, cracked or leaking. If it is,
it’s time to replace it.
• Clean up the battery connections by
removing any corrosion, lead oxidation, dust
or moisture from the top of the battery with a
scouring pad or wire brush. Be sure to brush
the corrosion away from you.
• If your battery has removable filler caps,
open the caps and check the water level in
• Make sure the plates are covered by the
fluid inside. This prevents weakening of your
battery and increases its possible service life.
• If the water level is low, add water (don’t
use tap water; instead use distilled or de-ion-ized water) until the plates are covered by at
least a half inch.
• Avoid overfilling, especially in hot
weather, because the heat can cause the solution inside to expand and overflow.—WF
THE SKINNY ON SYNTHETIC OIL
CONTINUED FROM PAGE 35
ASSAULT ON YOUR BATTERY
CONTINUED FROM PAGE 35
In our digital editions
Click here for a video about conventional and synthetic oils. (See
page 12 for details.)
Keep your car or truck
engine running smoothly.
Chevron Supreme Motor
Oils are formulated to protect
against engine deposits and sludge
formation for premium automobiles.
Item numbers vary.
Techron® Fuel Injector
Cleaner is speci;cally designed
to remove harmful deposits from
clogged carburetors. Item #847202
Delo® 400 LE SAE 15W- 40
Motor Oil provides outstanding
performance for diesel engines.
engine YOUR PROTECT
WAREHOUSE ONLY | AVAILABLE NOW
Selection varies by location.
HOW DO COSTCO
OUR GASOLINE IS
Unlike most other
products, we never
see the gasoline
that we pump into
our vehicle. Fuel
is a trust purchase,
which is why we
call our fuel Kirkland Signature
Gasoline. It’s a name you can trust
for value and quality.
Kirkland Signature Gasoline sold
in the U.S. and Canada exceeds the
TOP TIER™ performance standard, and
is available in both regular and premium grades. In fact, it contains ;ve
times the U.S. EPA-required deposit-control additive. Our engine testing
con;rms that this level of additive
keeps intake valves and fuel injectors
free of harmful deposits.
Kirkland Signature Gasoline cleans
up existing deposits and prevents
them from coming back – all at the
same low price. That’s Costco value.
Want to learn more?
Go to Costco.com and search
“Gasoline.” Or visit Top TierGas.com.
DIESEL USERS: Look for Costco
Diesel Fuel at select locations. Go
to Costco.com and search “Diesel”
to see our current and upcoming
Clean Injector Clogged Injector
See the Di;erence!
Clean fuel injectors ensure complete combustion, better performance and lower emissions.
Director of Fuel
Quality & Compliance