do I use regular or synthetic oil in my 2004 camry 4cl

Jeanette Donnay Cureton

Asked by Dec 17, 2014 at 10:32 AM about the 2004 Toyota Camry

Question type: Maintenance & Repair

5 Answers


Regular oil....

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Jeanette Donnay Cureton

Thank you!

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You can use either- it depends on your budget- and how long you plan on keeping the car- the synthetic will give you longer engine life-

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What jamnblues said is correct. You can use either. But, it is recommended that if you're going to use synthetic, do it early in the cars life. If not from day one, within 10-15k. I tried Mobil 1 synthetic oil in my 89' Toyota 4X4. I pulled the dipstick a week later and there was almost nothing there. I immediately dump my old oil back in which was 20W-50. Never had another problem. A guy I worked with recently put synthetic in his recently purchased mini van and ended up ruining the engine because the synthetic dislodged all the sludge and plugged up his oil pump. He had over a 100k on the van. Here is a short article you may want to read before you decide: This question comes up a lot from people who've just bought a used vehicle and are wanting to start their history with the car on fresh oil. The short answer: generally speaking, not any more. The caveat is that your engine must be in good working order and not be leaking right now. If that's the case, most modern oils are fully compatible with the elastomeric materials that engine seals are made from, and you shouldn't have any issues with leaks. The longer answer: Mixing Mineral and Synthetic oils - the old and busted concepts For the longest time, I had this to say about mixing mineral and synthetic oils: * If you've been driving around with mineral oil in your engine for years, don't switch to synthetic oil without preparation. Synthetic oils have been known to dislodge the baked-on deposits from mineral oils and leave them floating around your engine - not good. It's wise to use a flushing oil first (see below). * If you do decide to change, only go up the scale. If you've been running around on synthetic, don't change down to a mineral-based oil - your engine might not be able to cope with the degradation in lubrication. Consequently, if you've been using mineral oil, try a semi or a full synthetic oil. By degradation, I'm speaking of the wear tolerances that an engine develops based on the oil that it's using. Thicker mineral oils mean thicker layers of oil coating the moving parts (by microns though). Switching to a thinner synthetic oil can cause piston rings to leak and in some very rare cases, piston slap or crank vibration. * Gaskets and seals! With the makeup of synthetic oils being different from mineral oils, mineral-oil-soaked gaskets and seals have been known to leak when exposed to synthetic oils. Perhaps not that common an occurrence, but worth bearing in mind nevertheless. Mixing Mineral and Synthetic oils - the new hotness That's the thing with progress - stuff becomes out-of-date. Fortunately for you, dear reader, the web is a great place to keep things up-to- date, so here's the current thinking on the subject of mixing mineral and synthetic oils. This information is based on the answer to a technical question posed on the Shell Oil website. There is no scientific data to support the idea that mixing mineral and synthetic oils will damage your engine. When switching from a mineral oil to a synthetic, or vice versa, you will potentially leave a small amount of residual oil in the engine. That's perfectly okay because synthetic oil and mineral-based motor oil are, for the most part, compatible with each other. (The exception is pure synthetics. Polyglycols don't mix with normal mineral oils.) There is also no problem with switching back and forth between synthetic and mineral based oils. In fact, people who are "in the know" and who operate engines in areas where temperature fluctuations can be especially extreme, switch from mineral oil to synthetic oil for the colder months. They then switch back to mineral oil during the warmer months. There was a time, years ago, when switching between synthetic oils and mineral oils was not recommended if you had used one product or the other for a long period of time. People experienced problems with seals leaking and high oil consumption but changes in additive chemistry and seal material have taken care of those issues. And that's an important caveat. New seal technology is great, but if you're still driving around in a car from the 80's with its original seals, then this argument becomes a bit of a moot point - your seals are still going to be subject to the old leakage problems no matter what newfangled additives the oil companies are putting in their products.

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Be sure to use a quality filter..they are not all the same. a $4 filter is junk and can actually begin to restrict oil flow before oil-change time

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