* Platinum falls 5 pct on fears over automotive sector
* Gold slips as oil falls
* Dollar firms after higher than expected inflation reading
(Updates platinum, gold)
By Jan Harvey
LONDON, Aug 4 (Reuters) - Platinum fell another 5 percent to a new six-month low on Monday and could fall further in the short term as investors worry about the outlook for the car industry after monthly U.S. car sales slipped to a 16-year low.
Around half of global platinum supply is used by the automotive industry in catalytic converters, so any slowdown in car manufacturing could have a major impact on demand.
Spot platinum <XPT=> fell to $1,578.00/1,598/00 an ounce at 1307 GMT, having touched a session low of $1,563.50, its lowest since January 24, from $1,646.50/1,666.50 an ounce late in New York on Friday.
Prices are down about 30 percent since a record high of $2,290 in early March.
Sister metal palladium <XPD=> was down at $358.50/362.50 an ounce from $364.00/372.00 late in New York.
"Short term risk is to the downside, on poor numbers and reports from the car sector and slowing demand from this segment," said Commerzbank analyst Eugen Weinberg.
"The picture has changed completely (for platinum), from fears over supply shortages (to worries) over slowing demand," he added.
In Asia on Monday, the most active contract on Tokyo platinum futures <0#JPL:> slid by its daily 300-yen limit to its weakest since late January as speculators sold their contracts.
Investors are worried about a slowdown in the car industry after U.S. car sales slipped to a 16-year low in July, led by a 27 percent drop at General Motors Corp <GM.N>. [
]Investment demand for platinum also appears softer. London-based ETF Securities said its Physical Platinum ETF <PHPT.L> has seen outflows of over 42,000 ounces, or 11 percent, over the last month.
Earlier this year platinum spiked up to an all-time high of $2,290 an ounce on fears a power shortage in major producer South Africa could seriously deepen the metal's supply deficit this year.
GOLD REBOUNDS
Gold slipped alongside crude prices. The precious metal is used by investors as a hedge against inflation, often triggered by rising oil prices.
Oil reversed the gains it posted earlier in the session to fall below $124 a barrel, pressured by evidence of rising OPEC output. [
]The dollar meanwhile firmed against the euro, further pressuring gold, after a report showed a higher-than-expected reading on a key U.S. inflation measure for June. [
]The precious metal typically moves in the opposite direction to the U.S. currency, as it is often bought as a hedge against dollar weakness.
The market will be looking to a spate of central bank meetings this week, including Federal Reserve talks on Tuesday, to lend fresh direction to the foreign exchange markets.
In investment news, gold holdings of the world's largest gold-backed exchange traded fund, the SPDR Gold Trust <GLD>, edged up 0.1 percent to 674.02 tonnes on Friday, the trust said.
Spot gold <XAG=> fell to $904.65/905.85 an ounce from $909.85/911.45 late in New York on Friday.
Among other precious metals, spot silver <XAG=> edged up to $17.27/17.33 an ounce from $17.47/17.55 late in New York.
(Additional reporting by Pratima Desai)
(Reporting by Jan Harvey; Editing by Peter Blackburn)