* Gold gives up early gains, holding near 8-month lows
* Platinum rebounds from eight-month lows (Updates prices)
SINGAPORE, Aug 13 (Reuters) - Gold hovered within sight of its lowest level in eight months on Wednesday as the U.S. dollar held onto gains, prompting investors to trim their bullion holdings.
Silver and palladium also shed early gains, while platinum advanced in a technical rebound but there were no signs of buying from automakers, with most Japanese car plants closed for summer holidays.
Gold <XAU=> dropped to $808.10/809.10 an ounce from $814.55/815.55 an ounce late in New York on Tuesday, when it tumbled to $801.90 ounce -- its lowest level since late December as investors ditched bullion on a rally in the dollar.
Gold remains well below a record high of $1,030.80 hit in March.
"I think for the time being, the funds will continue try to test the $800 level to see whether it can be supported or not," said Dick Poon, manager of precious metals at Heraeus Ltd in Hong Kong.
The dollar held near six-month highs against a basket of major currencies, with investors keeping an eye on oil and stock markets to gauge how sustainable the recovery may be for the U.S. currency. [
]Spot platinum <XPT=> rose to $1,493.00/1,513.00 an ounce from $1,469.50/1,489.50 late in New York, off Tuesday's eight-month low at $1,462 an ounce.
"Below $1,500 is a very attractive price level for automobile companies. They will soon enter the market but at this moment, it's summer holiday in Japan," said Yukuji Sonoda, precious metals analyst at Daiichi Commodities in Tokyo.
"The platinum price has already reached its bottom but there are no buyers in the market," he said.
Platinum hit a lifetime high $2,290 in early March after a power shortage in main producerSouth Africa disrupted mining and sparked supply worries.Profit taking and worries about falling demand for autocatalysts have erased all of this year's gains.
Autocatalysts account for more than 60 percent of global platinum use.
Some dealers in Japan said a trading house bought back contracts in Tokyo platinum futures <0#JPL:>, which sank by the daily limit on Tuesday, but selling pressure from retail investors remained high.
Spot palladium <XPD=> rose to $310/315 an ounce from $305.00/313.00 an ounce. Silver <XAG=> edged down to $14.47/14.53 an ounce from $14.60/14.66 late in New York.
The most active Tokyo gold contract for June 2009 delivery <0#JAU:> on the Tokyo Commodity Exchange ended the morning session 81 yen per gram lower at 2,841 yen.
Gold futures for December delivery <GCZ8> on the COMEX division of the New York Mercantile Exchange added $1.1 an ounce to $815.7. Precious metals prices at 0224 GMT Metal Last Change Pct chg YTD pct chg Turnover Spot Gold 807.35 -3.30 -0.41 -3.04 Spot Silver 14.46 0.00 +0.00 -2.10 Spot Platinum 1493.00 23.50 +1.60 -1.78 Spot Palladium 310.00 4.00 +1.31 -15.76 TOCOM Gold 2841.00 -81.00 -2.77 -7.16 49796 TOCOM Platinum 5209.00 -8.00 -0.15 -2.43 12345 TOCOM Silver 509.30 -4.40 -0.86 -5.86 860 TOCOM Palladium 1103.00 -15.00 -1.34 -18.36 410 Euro/Dollar 1.4918 Dollar/Yen 108.46 TOCOM prices in yen per gram, except TOCOM silver which is priced in yen per 10 grams. Spot prices in $ per ounce. (Reporting by Lewa Pardomuan; Editing by Michael Urquhart)