Depends on your mileage really. A full synthetic oil is always best but, if your car is high mileage and has the annoying oil leak syndrome, you may want to go to any of the variety of oils that are sold as 'high mileage' oils. These are oils that are sold for vehicles in excess of 75,000 miles and contain a higher ash content to contain those annoying leaks. Check out Kmart or Walmart and your high mileage oils are clearly marked on the manufactures label...
The manufactor recomments 5-w-30
For a 1999 Solara v6, the oil capacity is 5 qts. of 5W30.
2005 Toyota Tacoma
The best oil is Mobil 1 Full Synthetic or Royal Purple. Best synthetics I've used. There is a good article on oils on www.toyotagtturbo.co.uk Use the search function to find it.
The 2001 Toyota Corolla engine oil capacity is 4.5 quarts of motor oil. For quarts of oil will go into the engine and one half quart of oil will be in the oil filter.
The 1985 Toyota Camry oil pressure sender is located on the left-hand side of the engine. The oil pressure sender will be just above of the oil pan.
For a 1999 Solara v6, the oil capacity is 5 qts. of 5W30.
You need 5W-30. The oil viscosity recommendation should be marked on your oil cap and in the owner's manual. Cheers
STP's part number is S3614. This oil filter fits a 2006 Toyota Solara (6 cyl) and other similar years of Toyota.
5,000 miles
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The oil pump is in the oil pan (aka the "sump").
5 qt
Gonna need to be a little more specific, but I can tell you it does take 5w30 oil.
3000 miles is safest
As you listed no year I cannot tell you what it is supposed to use. All, I can tell you is to use exactly what Toyota recommends and nothing else. And I would also ask you the question, Why Not put 5w20 in your Toyota Solara if that is what Toyota recommends?
See answers already posted to "How do you change oil on a 2004 Toyota Solara," "How do you change oil on a 2006 Toyota Solara," "How do you change oil on a 2007 Solara." They're the same as the '08. The short answer is, oil changes are the same on almost all vehicles. 1. Place a suitable container (5 quarts or more for the Solara) under the car. 2. Remove the drain plug and let the oil empty into it. 3. Replace the drain plug and move the container until it's under the filter 4. Spin the filter off (in the case of the Solara it's wise to place rags or paper towels under the filter to prevent a mess on the floor) 5. Replace filter 6. Add five quarts of oil 7. Start engine, check for leaks 8. Reset maintenance light. Cheers
Brand of oil is a personal choice. All Major Brands are excellent. I personally use Pennzoil.