Do i need to change oil filter again?

My toyota yaris 03 plate has just been serviced, previously using oil 5w but garage used 15w, when i drove the car it wasnt smooth or picking up speed and was jumpy. Is this due to the oil being changed or asommething else?Do i need to change oil filter again?
Viscosity of the oil is very important for cars with hydraulic valve lifters. It will effect the engine performance. Use only the manufacturers recommended weight.Do i need to change oil filter again?
Oil change does not have anything to do with the performance of the car. W right next to the number ie:5W is the short for weight. It differs from temperature to temperature. If you are in cold areas you would want to use thin oil as 5W to easily start the motor or if you are in Florida like me you would want to use thicker oil as 20W to protect the motor from heat. Hope this information helps. Good luck.
WRONG oil!





Should be 5w30 or 5w40





15w40 is for Diesels usually.





Quick-Lube (and dealer) Problems to Watch Out For





1. SAE30 oil. Some quick-lube places have been known to offer advertised specials that use SAE 30 oil, as opposed to 5W30 or 10W30. Pay the extra for the proper oil, or better yet avoid merchants that try to pull this kind of thing because it's an indicator that they are less than honest.





2. Trying to use the wrong oil because it's what they have in bulk. Insist on the oil that is specified on your filler cap and in your manual.





3. Pumping the oil out through the dipstick hole instead of removing the drain plug. I came across this gem when I asked if I needed to bring my own copper drain plug gasket. They said that they didn't remove the drain plug to drain the old oil. This was the Oil Changer location at Kifer %26amp; Wolfe in Sunnyvale, California. Pumping the oil out through the dipstick hole is a terrible way to get the old oil out because it leaves a lot of junk in the bottom of the oil pan. This was a long time ago and maybe they've changed their ways since then.





4. Selling unneeded and overpriced services such as engine flushes.





5. Selling overpriced, and often low quality, parts such as wiper blades and washer fluid, PCV valves, thermostats, etc. Never let a quick-lube place do any mechanical work on your vehicle.. They do no use journeyman mechanics.





6. Using poor quality filters. You really want to bring your own filter, from the dealer, with you when you go to a quick-lube place. They may take $1 or $2 off the price if you do this but don't count on it.





7. If you have a vehicle that actually still has Zerk fittings to lubricate then be sure that they actually lubricate these fitting. Most cars no longer require lubrication but some trucks still do.





8. Do not let a quick-lube place change or add any fluids other than oil. No transmission fluid, no brake fluid, no power steering fluid, no antifreeze, no oil additives, no fuel additives. It is just too easy for them to use the wrong fluid and cause permanent damage to your vehicle.





For some horror stories about Jiffy Lube see: http://www.consumeraffairs.com/automotiv鈥?/a> . I think I'll pass on them!





5W30 versus 10W30


Virtually all new passenger vehicles sold in the U.S. use either 5W30 or 10W30 oil. The difference between the two is that the 5W30 flows better when cold, so if you live in a cold climate or operate your vehicle in a cold climate during the winter months, you should use 5W30 if it is the preferred oil for your vehicle. If you live in a sub-tropical climate and don't operate your vehicle in cold climates, then 10W30 is acceptable as long as the manufacturer specifies that it is permissible to use it.





Is there a disadvantage to using an oil that flows better when cold, i.e. 5W30 versus 10W30?


Sometimes, but usually not. The crux of the issue is this: the bigger the difference between the cold oil viscosity and the hot oil viscosity, the more the volume of viscosity modifiers and the less the volume of base stock. If you are good about following the manufacturer's recommended oil change interval then stick with the 5W30 if that is the preferred oil for your vehicle, even if 10W30 is acceptable in warmer climates. Older cars may specify 10W30 only. This is because they need a little more viscosity when cold to keep a protective film on the cylinder walls. There have been instances where the larger amount of viscosity modifiers that are present in 5W30 have broken down due to excessive heat and have left carbon deposits on the valves, but this is extremely rare. The proper fix would be to reduce the excessive heat, but the workaround was to use an oil with less viscosity modifiers.





Why do many oil change places, even dealerships, use 10W30 instead of 5W30, even when 5W30 is preferred?


According to www.cartalk.com (see link in the references section), as well as many mechanics who have posted on usenet, 10W30 is the closest thing to a one size fits all oil. Many older vehicles need 10W30, and most newer vehicles are okay with it in warmer climates. Since many garages don't want to have multiple tanks of bulk oil they choose to carry only 10W30. The advice that Tom %26amp; Ray give is correct, 'it would not be a disaster if you used 10W30, but given a choice, go with the manufacturer's recommendation and use the 5W30.'





Thicker is Better Myth


The reason that oil viscosities have gotten thinner is because bearing clearances have become smaller. Using thicker oils will interfere with oil flow and the oil pressure will increase. In a worn engine it may be okay to increase the viscosity of the oil because the bearing clearances have become larger.





Regular Replacement Filters





Manufacturer Filters


This is usually the best choice for your vehicle.





Aftermarket Filters


These are filters made by companies like Fram,Wix, Motorcraft, Lee, A