Should I change to synthetic motor oil?
Q: I have a 1994 Toyota Celica and have normally made use of standard oil. Really should/can I modify to artificial? Can I mix the two?
A: Even though there are synthetic blends, it is in no way a good thought to be a “driveway engineer” and mix oil. On a exceptional situation, there can be some compatibility difficulties with the additives in a variety of brands and kinds of oil. Looking at the age of your car or truck, I would adhere with the Toyota suggested oil, which is 10W-30 SG typical oil.
Q: Any idea why no 1 has filed a lawsuit against the car marketplace for their faulty headlight lens handles? I take into account cloudy lenses a dangerous condition. I sense the automobile sector should replace these lenses at no cost to the client.
A: You are suitable that appropriate lighting is crucial. In truth, AAA did some screening and observed that poorly discolored headlights can restrict light-weight output by up to 90%. The very clear plastic lenses are issue to discoloration from abrasion, ultraviolet light and incorrect bulb use.
Lenses can also be destroyed in the course of servicing if a fender protect is over the lens and the headlights are on.
The lenses can, with a tiny care, last a extensive time but are regarded a aspect that can wear out. Lenses can be restored/polished, and there are also excellent-excellent, price-helpful aftermarket headlight assemblies. These aftermarket lights will not just allow for better night time driving performance but will improve the glance of the vehicle.
Q: I have two plug-in hybrids. In these autos, the electrical motor is primary and the gasoline motor arrives in as a booster to supply extended variety. Because of that, for most “close to city” driving, the gas motor does not run. If it does run, it is only for a limited time.
Even so, on a very long vacation, the gasoline motor does all the perform — just after the charge runs down — with the electrical motor furnishing a raise when the auto requirements more acceleration.
The company recommends synthetic oil, and that is all I have at any time utilized in these engines. Must I make absolutely sure the oil is pure synthetic, specified the abnormal obligation cycle of these powertrains?
A: Artificial oil and hybrids, or plug-in hybrids, have been built for each other. I would just use the oil fat and grade advisable by the producer. I wouldn’t be anxious about brand, as prolonged as it meets the specs. As an illustration, the Prius Prime utilizes 0W-16 API SN/RC oil. This is a totally artificial oil and the only oil that should be applied in that engine/auto.
Q: Can you remark on the advisability of setting up an AGM (advanced glass mat) battery in a car that was originally outfitted with a traditional direct-acid battery? Possibly there are differences in the auto charging process or digital controls of the method that would direct to incompatibility?
A: Substituting an AGM battery for a guide-acid battery can get a tiny controversial.
At AAA, we believe that you really should keep with the exact kind and structure of battery that your vehicle came with. The reasoning is the charging procedure was designed for a selected style and design battery, and that is the battery that should really be applied in the motor vehicle.
Some battery stores will demonstrate excellent, greater, and finest batteries and record the AGM replacement as the “best” battery.
Right until vehicle manufacturers approve upfitting to a distinct battery, I would use AGM batteries in autos that came with AGM batteries and lead-acid batteries in cars that arrived with guide-acid batteries.
Q: I own a 2015 Hyundai with 78,000 miles on it. The engine burns oil, but not all the time. I can go 500 miles on the highway and not use a fall. Other instances I can push 300 miles all-around city and use a quart.
When I went to the vendor simply because of the 10 yr/100,000-mile warranty, they told me they did not uncover any troubles. What should I do?
A: Some Hyundai engines had difficulties with the piston rings sticking and triggering oil intake. The repairs vary from an engine flush to an engine alternative.
At this level, I would talk to the seller to complete an oil intake take a look at.
Travel usually and have the vendor check out the oil as expected. If the engine is employing extra than a quart of oil in 750 miles, the repairs need to be included beneath guarantee.

John Paul is the AAA Northeast Automobile Physician. He has additional than 40 years of knowledge in the automobile field and is an ASE-Accredited Master Technician. Generate to John Paul, The Vehicle Health care provider, at 110 Royal Little Drive, Providence, RI 02904. Or electronic mail [email protected] and set “Car Doctor” in the matter area. Observe him on Twitter @johnfpaul or on Fb.